2003 GMC Sierra 3500 Ignition and Tune-Up Products

Name: Specific FitSpark Plug Wire
Brand: GM Genuine Parts
SKU: 349V
Price: 21.99 USD

Below you will find various in-demand GMC Ignition and Tune-Up Products, components and accessories for your 2003 Sierra 3500. Advance Auto Parts has popular Sierra 3500 parts like Spark Plugs, Ignition Boots, Ignition Coils and Boots and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other Sierra 3500 model years including 2001, 2002, 2004, 2005, 2006, 2007 and more. Select a category of 2003 GMC Sierra 3500 Ignition and Tune-Up Products below and start saving instantly.

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Popular 2003 GMC Sierra 3500 Ignition and Tune-Up Products Categories

Ignition Knock (Detonation) Sensor Kits

Ignition Switch Bulbs

Spark Plug Heat Shields

Diesel Glow Plug Controllers

Ignition Coil Boots

Direct Ignition Coil Kits

Standard Spark Plug Wires

Optional Spark Plug Wires

Knock Sensors

Diesel Glow Plug Wiring Harness

Ignition Coil Connectors

Ignition Starter Switches

Ignition Knock (Detonation) Sensor Seals

Glow Plug Relays

Single Spark Plug Wires

Ignition Coil Lead Wires

Ignition Coil Mounting Brackets

Diesel Glow Plug Relay Connectors

Ignition Coil Bolt

Essential Ignition and Tune-Up Products for 2003 GMC Sierra 3500s

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$21.99

ACDelco GM Original Equipment Spark Plug Wires consist of a single wire, encased in an insulating material, connectors, and insulating boots, and are GM-recommended replacements for your vehicle’s original components. The wires transfer high voltage pulses between the voltage source, the distributor, and the spark plug. These original equipment wires have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

Durable to help transfer high voltage pulses without damage
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$28.99

This diesel glow plug power strap is designed to match the fit and function of the original power strap on specified applications, and is engineered for reliable performance and durability.

Product Features:

Direct replacement – this diesel glow plug power strap is designed to match the fit and function of the original power strap on specified applications
Restores functionality – reliable replacement for an original part that has failed due to corrosion
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$58.99

Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All Carquest Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:

Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
Designed to meet or exceed all OEM specifications in fit, form & function
Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.

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$151.99

The Diesel Glow Plug Controller is an application specific item specifically designed to control all aspect of glow plug operation.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Where applicable electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.

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$102.99

Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.

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$75.99

NGK ultra-low resistance mag core wire sets provide outstanding performance and durability. High-temp premium silicone outer jacket and inner EPDM/silicone insulation contain high voltage currents for excellent dielectric strength. Stainless steel winding over premium ferrite magnetic core delivers ultra-low resistance, a more powerful spark and excellent EMI/RFI noise suppression. OE or better specified spark plug and distributor boots ensure the highest quality fit, performance and durability in every application. Spark plug boots are glued to NGK cable with a silicone sealer for a watertight seal. Stainless steel terminals utilizing up to 3 serrated crimps bite into cable jacket and inner insulation for the highest terminal retention strength (wherever possible). Locking C-shaped spring clip with corrosion-resistant plating ensures a secure and positive spark plug terminal connection.

Product Features:

PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees Celsius, inner insulation EPDM or silicone for best dielectric strength
STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier
LIMITED WARRANTY: See package for details

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$6.59

The Platinum TT Spark Plug with its innovative Twin-Tip design ensures faster flame propagation, promoting more complete combustion for enhanced engine performance and efficiency. Crafted with a durable platinum center electrode tip, this spark plug offers exceptional longevity and consistent performance, making it a reliable choice for your vehicle. Its tapered seat type ensures a secure fit, reducing the risk of gas leakage and optimizing combustion chamber sealing. Designed for precision and durability, this spark plug not only improves ignition efficiency but also contributes to smoother engine operation and potentially better fuel economy. A perfect blend of advanced technology and robust materials, it delivers excellent value for drivers seeking long-lasting performance and reliability.

Product Features:

Innovative Twin-Tip design promotes faster flame propagation for more complete combustion, enhancing engine performance and efficiency.
Durable platinum center electrode tip ensures exceptional longevity and consistent performance over time.
Tapered seat type provides a secure fit, reducing gas leakage and optimizing combustion chamber sealing.
Precision-engineered to improve ignition efficiency, contributing to smoother engine operation.
Advanced design and robust materials deliver long-lasting performance and reliability for drivers.

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$8.99

GM Genuine Parts Spark Plug Heat Shields are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$3.79

Long life miniature bulbs designed for durability, lower maintenance and greater safety.

Product Features:

Produced by a trusted OEM light source supplier
Easy installation as a direct replacement bulb
Legal for on road use

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$24.49

GM Genuine Parts Diesel Glow Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$67.99

The Street Fire Spark Plug Wires feature a low resistance conductor that’s wrapped in a sleek and durable black sleeve. The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery.

Product Features:

Helically Wound Conductor
Suppresses Electro And Radio Noise
Great Strength And Durability
Heavy Duty Terminals For Secure Connection
8mm Silicone/Synthetic Jacket Resists Heat
Improved Spark Delivery And Power

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$107.99

Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Ignition Switch allows for reliable control of the vehicle’s electrical systems and engine start-up, enhancing convenience and ensuring consistent performance during operation. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.

Product Features:

Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.

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$41.99

Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:

Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
WVE electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
Product constructed to meet all design and operating characteristics as intended by the manufacturer.
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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$16.99

This ignition knock (detonation) sensor seal is designed to match the fit and function of the original seal on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this ignition knock (detonation) sensor seal is designed to match the fit and function of the original seal on specified vehicles
Restores functionality – reliable replacement for an original part that is leaking or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$9.99

GM Genuine Parts Studs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$103.99

Check engine light on and vehicle running rough- Could be a failed knock sensor. This ignition knock sensor kit combines both necessary sensors and the wiring harness that joins them for a complete repair in one package.

Product Features:

Complete solution – this knock sensor kit includes two knock sensors and the wiring harness that connects them
Plug-and-play installation – matches original wiring harness, requiring no cutting or splicing
Quality assured – benchmarked against original components for performance and quality
Excellent value – original equipment quality at significant cost savings

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$614.99

Looking to replace your worn out LS coils with a more efficient upgrade, The new MSD Blaster LS Coil line is ideal for your modern GM muscle car or truck. The coils are designed as a bolt-in replacement yet have been thoroughly tested and detailed by our experienced engineering team.

Product Features:

Replacement Coil
Limited Warranty

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$95.99

An ACDelco GM Original Equipment Ignition Coil is a GM-recommended replacement for your vehicle’s original component, and undergoes more stringent testing than aftermarket products. It increases electrical system voltage to help ignite the air/fuel mixture as the starting and charging system starts the engine, maintains the battery’s charge, and provides power to the electrical accessories while the engine is running. An ACDelco GM OE Ignition Coil uses pure copper windings to improve durability and provide higher resistance to internal shorts and dielectric breakdown. Because the number and shape of the laminations determine the output characteristics of an ignition coil, ACDelco ensures that the silicone steel plates surrounding the coil correctly match the original part size and number. Since steel laminations work best when they are new, shiny, and clean, ACDelco laminations are coated to hinder corrosion and many feature molded plastic protection to help ensure that nothing is exposed. This original equipment ignition coil has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

High quality coated windings to improve durability and provide protection against internal shorts and dielectric breakdown
Silicone steel plates surrounding the ignition coil correctly match the original part size and number exactly
Laminations are coated to hinder corrosion and many feature molded plastic protection to help ensure that nothing is exposed
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$99.99

Spark Plug Wire Set

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$214.99

Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference. In a single 13 inch length of Super Conductor Wire there is only 40 – 50 ohms of resistance. That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it’s great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference (EMI) “choke”. This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. The MSD’s 8.5mm spark plug terminals feature Dual Crimp terminals. As the name implies, the terminals feature two crimps; one for the sleeve of the wire and another separate crimp to grasp the conductor. The MSD’s 8.5mm spark plug terminals feature Dual Crimp terminals. As the name implies, the terminals feature two crimps; one for the sleeve of the wire and another separate crimp to grasp the conductor.

Product Features:

Custom fit for make and model listed.
Wires are precut to exact specifications
Bolt-on performance
Conductor core features DuPont Kevlar material for increased tensile strength
Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately

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$37.49

ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

Protective outer coverings help provide long-lasting durability
Color-coded wires allow for easy installation
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$727.99

Look no further when it’s time to tune-up your LS. Bolt on legendary ignition performance with MSD’s direct replacement coils. Reliable parts from the ignition leader at a price that won’t break the bank.

Product Features:

Excellent reliability
Direct bolt-in replacement
Exceptional Value

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$716.99

Now you can have ACCEL late model Supercoils in additional colors

Product Features:

These coils feature advanced bobbin technology.
Highly specialized silicone magnetic steel cores with optimized windings
Specialized high temperature epoxy filled housings resists shock, vibration, chemicals, and overall engine bay environment.
These are a direct performance bolt on upgrade.
The ACCEL bodies are molded in a high dielectric strength material.

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$119.99

Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire: incredibly low resistance without electronic interference. In a single 11-inch length of super conductor wire, there are only 40-50 ohms of resistance. That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to its great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there are over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferromagnetic impregnated center core, produces an extremely effective Electro Magnetic Interference (EMI) “choke.” This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produces a sleeve that is highly resistant to high heat as well as abrasion and tears. The MSD’s 8.5mm spark plug terminals feature dual drimp terminals. As the name implies, the terminals feature two crimps: one for the sleeve of the wire and another separate crimp to grasp the conductor.

Product Features:

Custom fit for make and model listed
Wires are precut to exact specifications
Bolt-on performance
8 – 11″ wires
Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately

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$95.99

DENSO First Time Fit Ignition Wire Sets are identical in form fit color and performance to the factory-installed wire sets. Every part of each wire sets construction meets or exceeds OE/OES standards.

Product Features:

Each wire is pre-cut to exact length so the wire set is ready to install right out of the box
Identical OE end caps are designed to “click” into place for easy installation and a secure fit
Strong connections – through a patented process, the terminals are attached to provide an extremely strong connection, ensuring the cable and boot will not separate during removal and installation

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$87.99

ACDelco GM Original Equipment Ignition Coil Lead Wires are induction coils in a vehicle’s ignition system that send power from the battery through the spark plugs to ignite the fuel in the engine cylinders, and are GM-recommended replacements for your vehicle’s original components. These original equipment ignition coil lead wires have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

Insulated to help protect the interior conductor wire
Form fitting boots on each end prevent moisture from entering the coil or distributor
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

Upgrade your 2003 GMC Sierra 3500 with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2003 GMC Sierra 3500, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your Sierra 3500 functioning at its best. At Advance Auto Parts, we offer a wide selection of 105 Ignition and Tune-Up Products for the 2003 GMC Sierra 3500, designed to meet your needs without breaking the bank. From Spark Plug replacements to Ignition Boots upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Ignition and Tune-Up Products for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Ignition and Tune-Up Products for your 2003 GMC Sierra 3500 at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $3.29 to $1,016.99, with an average price of $105.01. Our 105 Ignition and Tune-Up Products in stock come from 18 trusted brands, so you’re sure to find the right part for your 2003 GMC Sierra 3500 without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2003 GMC Sierra 3500, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like NGK, ACDelco, DENSO, and more. NGK Ignition and Tune-Up Products start at just $7.49 and boast an impressive 4.8 stars average rating from customers. ACDelco and DENSO also bring quality to the table, with Ignition and Tune-Up Products available starting at $5.99, and at an average 4.7 stars rating. With 8,622 customer reviews and counting, our 2003 GMC Sierra 3500 Ignition and Tune-Up Products have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Ignition and Tune-Up Product upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2003 GMC Sierra 3500 is always ready to roll. We’re committed to providing you with everything you need to keep your Sierra 3500 in top shape, all in one place. Start shopping confidently below for your 2003 GMC Sierra 3500!

Best-Selling Spark Plugs for 2003 GMC Sierra 3500s

Enhance the driving experience in your GMC with 37 quality Spark Plug components, starting at $3.29.

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$11.49

ACDelco GM Original Equipment Double Platinum Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. ACDelco GM Original Equipment parts are the true OE parts installed during the production or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:

One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$14.99

SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs

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$13.49

Engineered to meet the highest OE standards for performance, durability, and emissions, this Iridium Long-Life Spark Plug is a game-changer for your vehicle’s ignition system. Featuring DENSO’s patented Iridium Alloy with a 90% Iridium fine wire center electrode and a platinum ground electrode, it delivers exceptional spark performance for over 100,000 miles – lasting up to three times longer than conventional plugs. The 360-degree laser welding process ensures a robust bond and structural integrity, even under extreme conditions exceeding 4,000 Deg F. Designed for enhanced engine performance, it provides more horsepower, quicker starts, and fewer misfires, even under heavy loads. Additionally, its advanced technology promotes better fuel efficiency, helping you save on fuel costs while maintaining optimal engine performance. With a tapered seat type and premium materials, this spark plug is built to endure and deliver consistent results, making it a reliable choice for long-lasting performance.

Product Features:

Latest OE technology with DENSO’s patented Iridium Alloy (90 percent Ir) and fine wire center electrode
Platinum ground electrode for extended life
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Sustained spark performance over 100,000 miles
Lasts up to three times as long as conventional plugs
Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
Iridium Long Life
Enhanced Engine Performance: Enjoy more horsepower, faster and easier starts, and fewer misfires under heavy loads, thanks to the advanced properties of DENSO’s Iridium alloy.
Fuel Efficiency: Experience better conservation of fuel at all times, contributing to overall improved engine efficiency.

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$5.99

ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

Product Features:

Black Onyx coating helps reduce corrosion
Copper core provides great heat transfer and helps maximize plug durability
Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
Available for use in Marine applications
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$11.99

BOSCH OE Fine Wire Double Iridium. All iridium plugs are NOT created equal. Give your customers the only one engineered for both high performance and long life. The ultra fine wire design and laser welded, tapered ground electrode deliver the ultimate in ignitability and high performance. The iridium-alloy center electrode firing pin and laser welded ground electrode with iridium alloy inlay help it to go the distance.

Product Features:

Double Iridium electrodes iridium firing pin and iridium ground electrode inlay offer higher performance and 4 times longer life compared to standard copper spark plugs.
OE Fine Wire design requires up to 24% less voltage to ignite
360 degree continuous laser welding increases durability for increased life
Copper core provides broader heat range to resist pre-ignition and fouling
Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
Tapered ground electrode allows for better ignition throughout the life of the spark plug
Customer satisfaction guarantee (visit www.boschautoparts.com/sparkplugs for details)

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$11.49

The Double Platinum Spark Plug is engineered to meet the highest OE standards for performance, durability, and emissions compliance, making it a reliable choice for your vehicle. Featuring OE-grade platinum on both the center and ground electrodes, it ensures sustained spark performance for over 60,000 miles. Its premium shell construction with machine-rolled threads enhances durability and provides a secure fit, while the tapered seat type ensures optimal sealing. With superior thermal conductivity and reduced secondary required voltage, this spark plug boosts ignition efficiency and minimizes energy loss. Designed to deliver consistent performance, it helps reduce shop comebacks and ensures customer satisfaction. The double platinum design further enhances longevity, making it a cost-effective and dependable solution for maintaining your vehicle’s peak performance.

Product Features:

OE grade platinum on both center and ground electrodes
Premium shell construction with machine-rolled threads
Superior thermal conductivity
Sustained spark performance over 60,000 miles
Reduced secondary required voltage, increased ignition efficiency
Satisfied customers, reduced shop comebacks
Double Platinum

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$20.99

NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs
Superior Durability: The iridium-tipped center electrode is six times harder than platinum, ensuring long-lasting performance and reliability.
OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring a perfect fit and optimal performance.
Fine Wire Tip Design: The fine wire tip design of the IZTR5B11 model enhances ignition efficiency and performance.

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$3.29

Standard Spark Plug (AGSF52C) delivers reliable performance and durability, making it an ideal choice for maintaining your vehicle’s efficiency. Engineered to meet strict Ford standards, these Motorcraft spark plugs are designed to match specific engines, ensuring enhanced durability, reduced fuel consumption, and optimized emissions. With a tapered seat type and multi-rib insulator, they resist oxidation, arc erosion, and misfires, providing long-lasting reliability. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles, while also being suitable for a wide range of domestic and import cars and trucks. Crafted with high-quality materials, they offer service intervals of up to 100,000 miles, helping prevent false check engine lights and maintaining original equipment performance. Whether you’re replacing worn-out plugs or maintaining your vehicle’s factory standards, these spark plugs deliver confidence and reliability for almost any application.

Product Features:

Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
Backed by Motorcraft’s Service Parts Warranty
Exact fit for Ford, Lincoln and Mercury vehicles
Resistant to oxidation and arc erosion.
Multi-rib insulator protects against misfire.
Service intervals of up to 100,000 miles.
Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
Motorcraft ignition components help prevent false check engine lights.

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$7.49

NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance.
V-Groove Tip Design: The unique V-Groove tip design of the TR55 model enhances ignitability and overall engine performance.
Lower Emissions: The NGK Laser Platinum Spark Plug contributes to lower emissions, supporting a cleaner and more environmentally friendly driving experience.

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$5.99

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance.
V-Groove Tip Design: The unique V-groove tip design of the center electrode enhances ignitability and overall engine performance.

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$8.49

NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

Product Features:

SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs
Improved Fuel Efficiency: Designed to offer better fuel efficiency, the NGK G-Power Platinum spark plugs help you save on fuel costs.
Lower Emissions: These spark plugs contribute to lower emissions, making them an environmentally friendly choice.
Faster Starts and Quicker Acceleration: Experience faster starts and quicker acceleration with the advanced design of the NGK G-Power Platinum spark plugs.

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$8.49

SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs
Tapered Seat Type: The tapered seat type ensures a secure fit and optimal performance in compatible vehicles.

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$6.49

ACDelco GM Original Equipment Conventional Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:

Black Onyx coating helps reduce corrosion
Copper core provides great heat transfer and helps maximize plug durability
Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
Available for use in Marine applications
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

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$5.49

Autolite Platinum spark plugs are crafted for superior performance and durability, making them ideal for older engine applications. Featuring a platinum center electrode firing tip, these spark plugs ensure quicker firing, smoother starts, and enhanced fuel efficiency. The platinum design prevents gap erosion, extending service life, while the high alumina ceramic insulator offers excellent thermal conductivity and insulation for added strength. A multi-rib insulator minimizes flash-over, and the nickel-plated shell resists corrosion for long-lasting reliability. With a standard center electrode design and long projection, these performance-grade spark plugs deliver consistent ignition and improved acceleration. The tapered seat type and resistor functionality further enhance compatibility and efficiency, making them a dependable choice for maintaining engine health and optimizing performance.

Product Features:

Engineered with a platinum firing tip that prevents gap erosion for longer service life.
Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
The multi-rib insulator prevents flash-over.
Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
The tapered seat type design ensures optimal compatibility and improved efficiency, contributing to reliable engine performance.

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$15.49

The Iridium TT Spark Plug combines the durability of an OE-style plug with the power and torque of high-performance engineering, making it a standout choice for drivers seeking reliability and efficiency. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm needle tip ground electrode promotes higher spark energy and minimizes heat quenching. Built with DENSO’s patented Iridium-Rhodium alloy formula, it boasts the highest concentration of Iridium for unmatched durability, withstanding temperatures over 4000 Deg F. The advanced Twin-Tip Technology pairs a fine wire Iridium center electrode with a needle tip Platinum ground electrode, ensuring superior ignition and fuel efficiency. Designed to enhance fuel economy and reduce emissions, this spark plug allows you to drive farther with fewer stops. Developed to original equipment specifications and utilizing a 360-degree laser welding process, it guarantees exceptional structural strength and consistent performance. Perfect for those who demand endurance and power in every drive.

Product Features:

0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Durability of an OE style plug combined with Power and Torque of high performance.
Withstands temperatures greater than 4000 degree Fahrenheit
Iridium TT
Advanced Twin-Tip Technology: Combines a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode for superior ignition and efficiency.
Enhanced Fuel Economy and Lower Emissions: Designed to provide better fuel economy and reduced emissions, allowing you to drive around the Earth over 4 times.
Original Equipment Specification: Developed from the Super Ignition Plug (SIP) design, ensuring reliable and consistent performance.

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$7.49

Autolite Double Platinum spark plugs are engineered for exceptional durability and performance, making them a reliable choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, these spark plugs effectively prevent gap erosion, reduce misfires, and extend service life. The yttrium-enhanced ground electrode ensures superior heat transfer, allowing the spark plug to withstand high temperatures and pressures for greater longevity. With a high alumina ceramic insulator, these plugs deliver optimal thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for consistent performance. Designed with a long projection center electrode and tapered seat type, these spark plugs offer precision and efficiency. Autolite’s trusted quality is backed by over 11 billion plugs sold, ensuring you get proven reliability in every product. Ideal for performance-grade applications, these spark plugs are crafted with platinum center and ground electrode tips for enhanced durability and superior ignition performance.

Product Features:

Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
The multi-rib insulator prevents flash-over.
Exceptional Quality: With more than 11 billion plugs sold, Autolite delivers trusted and proven quality in every spark plug.

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$14.99

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Product Features:

SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
Outstanding Acceleration and High Fuel Efficiency: NGK Iridium IX spark plugs are engineered to deliver exceptional acceleration and improved fuel efficiency, making them ideal for performance enthusiasts.
Extreme Ignitability and Anti-Fouling: These spark plugs offer extreme ignitability and exceptional resistance to fouling, ensuring reliable performance in various driving conditions.

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$4.49

Autolite Copper spark plugs are designed to provide reliable performance and meet the demands of your vehicle with precision engineering. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes deliver extended life, while the high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation for added strength. With a nickel-plated shell, these spark plugs resist corrosion, offering long-lasting durability. Engineered for quick starts, they improve your vehicle’s reliability and performance, while optimizing fuel efficiency to help you save on costs. The long projection center electrode and tapered seat design ensure a secure fit and smooth operation. Experience smoother acceleration and a more responsive driving experience with Autolite Copper spark plugs, a dependable choice for maintaining excellent engine performance.

Product Features:

The copper core center electrode aids in thermal control and improves resistance to fouling.
Its specially engineered high nickel alloy center and ground electrode provides extended life.
The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
Quick Starts: The Autolite Copper Spark Plug ensures quick engine starts, enhancing your vehicle’s reliability and performance.
Good Fuel Economy: Designed to optimize fuel efficiency, these spark plugs help you save on fuel costs while maintaining excellent engine performance.
Smooth Acceleration: Experience smoother acceleration with the high-quality engineering of Autolite Copper Spark Plugs, providing a more responsive driving experience.

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$13.99

The Iridium Power Spark Plug features the world’s smallest Iridium Center Electrode at just 0.4mm, delivering unmatched spark precision for maximum combustion efficiency. Engineered with a patented 360-degree laser welding assembly process, this spark plug ensures exceptional durability and reliability under extreme conditions. Its U-groove and taper-cut ground electrode design optimizes flame propagation, enhancing engine performance and fuel efficiency. Built to withstand temperatures exceeding 4000 Deg F, it is burnished with nickel plating for superior high-temperature endurance and corrosion resistance. Designed for versatility, it offers a wide range of part numbers to fit thousands of applications, including classic and collector cars. With its Iridium tip and tapered seat type, this spark plug is the ultimate choice for drivers seeking maximum spark energy, durability, and long-lasting performance.

Product Features:

World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
Patented 360-degree laser welding assembly process
U-groove and taper cut ground electrode to maximize flame propagation.
Withstands temperatures greater than 4000 degree Fahrenheit
Burnished nickel plating for high temperature endurance and superior corrosion resistance
Wide range of part numbers for thousands of applications, including classic and collector cars
Iridium Power

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$3.69

The Copper Plus Spark Plug delivers dependable performance and durability, making it a reliable choice for maintaining optimal engine function. Featuring a copper core center electrode, it ensures enhanced conductivity and precise heat control, promoting good overall wear and extending the spark plug’s lifespan. Built to ISO and SAE Standards, this spark plug guarantees proven performance and superior corrosion resistance, even in demanding conditions. Its nickel center electrode tip and tapered seat design further enhance reliability and engine efficiency, making it an excellent standard replacement option. With a resistor type design and robust materials, this spark plug is engineered to provide consistent ignition and long-lasting durability, ensuring your vehicle runs smoothly mile after mile.

Product Features:

Copper Plus – Dependable Performance and Durability
Copper core center electrode allows for accurate control of heat range for longer life
Superior corrosion resistance
Built to ISO and SAE standards for proven performance
Built to ISO and SAE standards for proven performance
Enhanced Conductivity and Heat Control: The Champion Copper Plus Spark Plug features a copper core electrode that provides increased conductivity and heat control, ensuring good overall wear and extending the spark plug’s life.
Reliable Nickel Center Electrode Tip: Featuring a nickel center electrode tip and a tapered seat type, this spark plug enhances reliability and ensures optimal engine performance.

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$7.99

ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:

Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
Pure copper core provides great heat transfer and helps maximize plug durability
Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
Ribless insulator helps optimize plug to boot seal
Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Premium aftermarket replacement part
Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
High-Quality Suppressors: ACDelco Gold RAPIDFIRE Spark Plugs feature high-quality suppressors that help prevent misfiring, ensuring reliable performance for everyday use.
Improved Plug to Boot Seal: Designed with an improved plug to boot seal, these spark plugs provide a secure fit, enhancing overall engine performance and longevity.

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$8.49

The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.44 is a 14mm, 0.708 reach plug with a taper seat. It fits domestic applications from the mid-90s. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.

Product Features:

E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn.
Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
The Spark Plugs are pre-gapped at the factory and cannot be adjusted.
Patented Electrode Configuration: The unique patented electrode design of the E3.44 spark plugs increases combustion pressure, resulting in enhanced power output and improved fuel economy.
Superior Heat Transfer: The three-leg design securing the Diamond FIRE electrode to the shell ensures excellent heat transfer and creates more turbulence in the cylinder for optimal performance.
Compatibility: The E3.44 spark plug is a 14mm, 0.708 reach plug with a taper seat, fitting domestic applications from the mid-90s.
Environmental Benefits: By improving combustion efficiency, these spark plugs help reduce emissions, contributing to a cleaner environment.

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$6.59

Innovative Twin-Tip design promotes faster flame propagation for more complete combustion, enhancing engine performance and efficiency.
Durable platinum center electrode tip ensures exceptional longevity and consistent performance over time.
Tapered seat type provides a secure fit, reducing gas leakage and optimizing combustion chamber sealing.
Precision-engineered to improve ignition efficiency, contributing to smoother engine operation.
Advanced design and robust materials deliver long-lasting performance and reliability for drivers.

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$8.49

The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “diamond-shaped” side wire electrode enhances combustion by quickly igniting the air/fuel mixture, resulting in a larger flame kernel and improved power output – up to 6% on average. This advanced design not only boosts energy but also promotes fuel savings and reduces engine carbon deposits for a cleaner, more efficient operation. Constructed with durable nickel center and ground electrode tips, it offers long-lasting reliability. The tapered seat type ensures a secure fit, and the pre-gapped design eliminates the need for adjustments, making installation hassle-free. Upgrade to this spark plug for enhanced performance, better fuel economy, and a cleaner engine.

Product Features:

E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn
Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
The Spark Plugs are pre-gapped at the factory and cannot be adjusted.

Most Popular 2003 GMC Sierra 3500 Ignition Boots

Customize your GMC with 3 Ignition Boots products like Spark Plug Boots, all priced under $214.99.

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$214.99

Custom fit for make and model listed.
Wires are precut to exact specifications
Bolt-on performance
Conductor core features DuPont Kevlar material for increased tensile strength
Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately

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$101.99

The Edelbrock No. 22716 Max-Fire Ultra-Spark 50 Performance’s Spark plug wires are manufactured from highest quality materials to help deliver maximum voltage ensuring the ultimate performance. These wires have an extremely high EMI/RFI suppression along with a very low resistance to help deliver the most spark possible. They feature a heavy duty 8.5mm diameter silicone jacket to protect the Kevlar spiral wound core from heat, moisture and chemicals. They are engineered for high performance engines that need all of the voltage they can get for maximum power output. Made with wire leads that deliver a low 40 ohms of resistance per-foot for maximum EMI/RFI noise suppression. This makes them ideal for engines with aftermarket high performance upgrades that require maximum voltage. See application chart for engine or vehicle specific kits.

Product Features:

Only 50 Ohms of Resistance
8.5 mm
12.5″ to 13″ inch Length

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$99.99

Spark Plug Wire Set

Top Picks for 2003 GMC Sierra 3500 Ignition Coils and Boots

Upgrade GMC Sierra 3500s with top-quality Ignition Coils and Boots parts, including 32 OEM and aftermarket selections for your 2003 model.

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$129.99

ACDelco Professional Spark Plug Wire Sets consist of a set of wires, encased in an insulating material, connectors, and insulating boots, and are a high quality replacement for many vehicles on the road today. The wires transfer high voltage pulses between the voltage source, the distributor, and the spark plugs. These premium aftermarket replacement components are manufactured to meet your expectations for fit, form, and function.

Product Features:

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$126.99

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$79.99

The MSD Blaster GM Coil is designed to produce increased voltage and energy over the stock GM Coil. To get even more ignition performance, install an MSD Ignition Control with a PN 8876 Harness for a direct plug-in installation.

Product Features:

Direct performance replacement for GM dual connector coil
100:1 turns ratio and lower primary resistance produce high voltage output
Works with stock ignition as well as MSD Ignitions
CARB E.O. Approved

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$119.99

Custom fit for make and model listed
Wires are precut to exact specifications
Bolt-on performance
8 – 11″ wires
Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately

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$79.99

Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty(limited). Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$57.99

Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty (limited). Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
Extensive design validation testing to ensure long-lasting reliability
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$61.99

Carquest ignition coils meet original equipment (OE) fit, form and function and are built to ensure reliable starting and performance. Carquest ignition coils are tested to ensure proper spark and perfect fit for each application. These ignition coils are an affordable repair choice to restore the vehicle’s ignition system performance. Carquest ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
Extensive design validation testing to ensure long-lasting reliability
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$54.99

High output
Long spark duration
High dielectric strength
Corrosion resistant connections
High reliability
Long service life

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$64.99

NGK ignition coils are manufactured to meet or exceed OE standards for the highest durability and operational performance, so they can be installed with confidence. NGK and their family of automotive products have over 80 years’ experience and are driven by extreme dedication to innovation, performance and quality. With state-of-the-art manufacturing, inventory and distribution facilities in North America and globally, NGK is dedicated to providing customers with world-class products and services. Developed and rigorously tested in our ISO 17025 accredited test lab under the most extreme conditions, NGK’s coil designs will outperform all others – far beyond operational environments a vehicle would actually experience. NGK ignition coils have vast coverage including late-model domestic and import vehicles. NGK’s OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist.

Product Features:

OE QUALITY: Vacuum-sealed premium epoxy resin and thermoplastic coil housings provide superior dielectric strength, voltage insulation and durability
OPTIMAL PERFORMANCE: Precision coil windings and laminations maximize outputs, custom NGK ASIC chipset optimizes efficiency, prevents component damage
EASE OF INSTALLATION: NGK Ignition Coils include ignition control module, premium high temperature coil boot, and jumper harnesses where required
THE NGK DIFFERENCE: Featuring superior materials and design enhancements
EXTENSIVE TESTING: NGK ignition coils must pass extreme testing during manufacturing to ensure the highest quality and durability standards are met
PRODUCT ENGINEERING: Advanced flow and stress modeling systems preemptively identify and avoid common failure points found in OE and competitor coils

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$87.99

OE QUALITY: Vacuum-sealed premium epoxy resin and thermoplastic coil housings provide superior dielectric strength, voltage insulation and durability
OPTIMAL PERFORMANCE: Precision coil windings and laminations maximize outputs, custom NGK ASIC chipset optimizes efficiency, prevents component damage
EASE OF INSTALLATION: NGK Ignition Coils include ignition control module, premium high temperature coil boot, and jumper harnesses where required
THE NGK DIFFERENCE: Featuring superior materials and design enhancements
EXTENSIVE TESTING: NGK ignition coils must pass extreme testing during manufacturing to ensure the highest quality and durability standards are met
PRODUCT ENGINEERING: Advanced flow and stress modeling systems preemptively identify and avoid common failure points found in OE and competitor coils

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$87.99

Every single Delphi ignition coil is designed and endurance tested using high quality materials. This ensures fast starts, consistent engine performance and optimized fuel efficiency. We makes more than 10 million ignition coils for North America each year, and each one is engineered to OE design specifications for vehicles from Ford, Toyota, Nissan, Lexus, GM, Mazda, Chrysler, Subaru, Acura and more.

Product Features:

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to insert power into spark plugs to ensure fast starts, consistent engine performance and optimized fuel efficiency
Delphi uses smart winding process techniques to controls wire lengths, keeping voltage the same
We manufacture our ignition coils with a high quality wire coating that resists imperfections that lead to failure

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$65.99

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to insert power into spark plugs to ensure fast starts, consistent engine performance and optimized fuel efficiency
Delphi uses smart winding process techniques to controls wire lengths, keeping voltage the same
We manufacture our ignition coils with a high quality wire coating that resists imperfections that lead to failure

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$9.99

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$53.99

Protective outer coverings help provide long-lasting durability
Color-coded wires allow for easy installation
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$95.99

Each wire is pre-cut to exact length so the wire set is ready to install right out of the box
Identical OE end caps are designed to “click” into place for easy installation and a secure fit
Strong connections – through a patented process, the terminals are attached to provide an extremely strong connection, ensuring the cable and boot will not separate during removal and installation

from

$87.99

Insulated to help protect the interior conductor wire
Form fitting boots on each end prevent moisture from entering the coil or distributor
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

from

$101.99

Replacement Coil
Limited Warranty

from

$101.99

Replacement Coil
Limited Warranty

from

$95.99

High quality coated windings to improve durability and provide protection against internal shorts and dielectric breakdown
Silicone steel plates surrounding the ignition coil correctly match the original part size and number exactly
Laminations are coated to hinder corrosion and many feature molded plastic protection to help ensure that nothing is exposed
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

from

$562.99

Replacement Coil
Limited Warranty

from

$67.99

PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees Celsius, inner insulation EPDM or silicone for best dielectric strength
STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier
LIMITED WARRANTY: See package for details

from

$1016.99

MSD’s engineering team has been working diligently the past year to improve our Multiple Spark Coils for the GM LS-engine platform. The coils fit in place of the OEM coils yet are capable of delivering higher spark energy to the plugs, topped with multiple sparks at idle rpm. Increased spark energy and voltage, along with multiple spark capabilities, help improve the combustion process of the fuel mixture to create an efficient burn. This results in improved throttle response, smooth idle and quick starts, plus increased high rpm performance.

Product Features:

Multiple sparks at idle rpm
Direct bolt-in to factory connectors
Improved spark energy and voltage output
Patented winding design and materials

from

$716.99

Replacement Coil
Limited Warranty

from

$409.99

Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
Extensive design validation testing to ensure long-lasting reliability
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

In-Demand Ignition Wires for 2003 GMC Sierra 3500s

Select from 8 premium Ignition Wires parts for your 2003 GMC Sierra 3500, with prices ranging from $55.99 to $219.99.

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from

$71.99

CARQUEST Premium Spark Plug Wire Sets are engineered to restore ignition wire reliability and performance. They are designed to meet or exceed OE design requirements, performance, fit, form and function of the OE wire. Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.

Product Features:

SAEJ2031 Class E cable resist heat (428 Deg. F), cold (-104 Deg. F), electrical interference, abrasion and oil.
Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
100% Pure silicone external insulation resists oil penetration, for lifetime protection against wire set failure.
EPDM inner insulation stops power-robbing voltage leaks.
With Magnetic-impregnated Kevlar internal conductors – durable and break resistant
Engineered to meet OEM tolerances using variable pitch wire winding, creating better resistance to electric magnetic interference (E.M.I resistance).
Excellent interference suppression and consistent performance
Easy lock terminals for more convenient installation.
Thick silicon outer jacket for excellent heat resistance. Insulating EPDM based compound inner jacket helps minimize voltage drop and enhance durability.
Broad coverage available for most vehicles on the road today
Include grease pack to ensure easy installation and removal

from

$62.99

SAEJ2031 Class E cable resist heat (428 Deg. F), cold (-104 Deg. F), electrical interference, abrasion and oil.
Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
100% Pure silicone external insulation resists oil penetration, for lifetime protection against wire set failure.
EPDM inner insulation stops power-robbing voltage leaks.
With Magnetic-impregnated Kevlar internal conductors – durable and break resistant
Engineered to meet OEM tolerances using variable pitch wire winding, creating better resistance to electric magnetic interference (E.M.I resistance).
Excellent interference suppression and consistent performance
Easy lock terminals for more convenient installation.
Thick silicon outer jacket for excellent heat resistance. Insulating EPDM based compound inner jacket helps minimize voltage drop and enhance durability.
Broad coverage available for most vehicles on the road today
Include grease pack to ensure easy installation and removal

from

$55.99

SAEJ2031 Class E cable resist heat (428 Deg. F), cold (-104 Deg. F), electrical interference, abrasion and oil.
Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
100% Pure silicone external insulation resists oil penetration, for lifetime protection against wire set failure.
EPDM inner insulation stops power-robbing voltage leaks.
With Magnetic-impregnated Kevlar internal conductors – durable and break resistant
Engineered to meet OEM tolerances using variable pitch wire winding, creating better resistance to electric magnetic interference (E.M.I resistance).
Excellent interference suppression and consistent performance
Easy lock terminals for more convenient installation.
Thick silicon outer jacket for excellent heat resistance. Insulating EPDM based compound inner jacket helps minimize voltage drop and enhance durability.
Broad coverage available for most vehicles on the road today
Include grease pack to ensure easy installation and removal

from

$67.99

Helically Wound Conductor
Suppresses Electro And Radio Noise
Great Strength And Durability
Heavy Duty Terminals For Secure Connection
8mm Silicone/Synthetic Jacket Resists Heat
Improved Spark Delivery And Power

from

$187.99

ACCEL now offers the cure for burnt spark plug boots with Extreme 9000 Ceramic wire kits. The 8mm Ferro-Spiral core wire now has ceramic boots on the spark plug end of the wires. Ceramic boots withstand up to 2,000 degrees. Great for running headers with close tolerances, an engine bay with little room, or an RV with boots that melt because of heat. Ultra high temperature double silicone construction wire rated at 600 degrees Fahrenheit peak. 500 ohms/ft Ferro-Spiral core developed for performance use. Excellent energy delivery to the spark plugs, while providing the highest level of RFI/EMI suppression. Stainless steel spark plug terminals for maximum spark energy to the plugs. Pre-made to factory lengths for a perfect fit.

Product Features:

Total length= 12″
Straight Spark Plug Boot
Ceramic boots withstand up to 2,000 Deg Fahrenheit
8mm double silicone construction black wire rated at 600 Deg F rated
500 Ohms/foot ferro spiral core offers the highest level of RFI/EMI suppression

from

$219.99

Ceramic boots withstand up to 2,000 Deg Fahrenheit
8mm double silicone construction black wire rated at 600 Deg F rated
500 Ohms/foot ferro spiral core offers the highest level of RFI/EMI suppression
Universal and custom fit applications
Universal And Custom Fit Applications

from

$75.99

PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees Celsius, inner insulation EPDM or silicone for best dielectric strength
STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier
LIMITED WARRANTY: See package for details

from

$106.99

The Edelbrock No. 22715 Max-Fire Ultra-Spark 50 Performance’s Spark plug wires are manufactured from highest quality materials to help deliver maximum voltage ensuring the ultimate performance. These wires have an extremely high EMI/RFI suppression along with a very low resistance to help deliver the most spark possible. They feature a heavy duty 8.5mm diameter silicone jacket to protect the Kevlar spiral wound core from heat, moisture and chemicals. They are engineered for high performance engines that need all of the voltage they can get for maximum power output. Made with wire leads that deliver a low 40 ohms of resistance per-foot for maximum EMI/RFI noise suppression. This makes them ideal for engines with aftermarket high performance upgrades that require maximum voltage. See application chart for engine or vehicle specific kits.

Most Sold 2003 GMC Sierra 3500 Glow Plugs

Explore our best-selling GMC parts for the 2003 Sierra 3500 among 7 OEM and aftermarket options starting from $24.49.

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from

$24.49

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

from

$25.99

Autolite Glow Plugs are engineered to warm the combustion chamber to ensure proper fuel ignition, leading to quicker and more seamless startups.

Product Features:

Designed with a nickel-chrome alloy that enables the plug to reach high heat intensity quickly, for reliable cold starts.
The sheathed coil heaters provide improved pre-heating and quicker starts.
Its precision machined nickel-plated threads with no burring allow for easy installation.
For dependability and long-lasting performance, use Autolite glow plugs

from

$28.99

Direct replacement – this diesel glow plug power strap is designed to match the fit and function of the original power strap on specified applications
Restores functionality – reliable replacement for an original part that has failed due to corrosion
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$151.99

The Diesel Glow Plug Controller is an application specific item specifically designed to control all aspect of glow plug operation.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Where applicable electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.

from

$37.49

Protective outer coverings help provide long-lasting durability
Color-coded wires allow for easy installation
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

from

$102.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.

from

$54.99

This diesel glow plug relay is designed to match the fit and function of the original relay on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this diesel glow plug relay is designed to match the fit and function of the original relay on specified vehicles
Ideal solution – this relay is a reliable replacement for an original part that is damaged or has failed due to fatigue
Durable construction – this relay is made from quality components to ensure reliable performance and a long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

Top-Rated Ignition and Tune-Up Products Brands For Your 2003 GMC Sierra 3500

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 2003 GMC Sierra 3500s. Below you’ll find some of our best rated Ignition and Tune-Up Products from NGK, ACDelco, and DENSO, and more. Ignition and Tune-Up Products from these brands that fit a 2003 Sierra 3500 start at just $5.99 and are rated as high as 4.8 stars. OEM and aftermarket Ignition and Tune-Up Products don’t get more top quality, durable, and affordable than from the brands below.

Popular NGK 2003 GMC Sierra 3500 Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2003 GMC Sierra 3500, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. NGK ticks all of those boxes. We offer a wide selection of NGK Ignition and Tune-Up Products, specifically designed for the 2003 GMC Sierra 3500. With over 3 NGK brand Ignition and Tune-Up Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $7.49, with an average price of just $14.49. Plus, with over 553 customer reviews and an average rating of 4.8 stars, you can trust that our NGK Ignition and Tune-Up Products will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

from $20.99

(2)

Laser Iridium Spark Plug (IZTR5B11): Fine Wire Tip for Efficiency

“A+”

from $7.49

(448)

V-Power Nickel Spark Plug (TR55): Enhanced Ignitability & Performance

“I use these plugs in the builds that I build when riding them around. They have a projected tip & help burn off fuel deposits. Which is definitely imp”

from $14.99

(103)

Iridium IX Spark Plug (TR55IX): Outstanding Acceleration & Durability

“Gaped perfect”

Popular ACDelco 2003 GMC Sierra 3500 Ignition and Tune-Up Products

ACDelco auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 2003 GMC Sierra 3500 owner should feel confident when installing genuine ACDelco parts in their vehicle. To ensure the best fit and performance for your 2003 Sierra 3500, Advance Auto Parts carries a full inventory of 3 ACDelco Ignition and Tune-Up Products. Plus you will be keeping your GMC in peak condition while saving money because prices on these ACDelco Ignition and Tune-Up Products range from $5.99 to $129.99, plus, with more than 359 customer reviews and an impressive 4.7 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.

from $129.99

(139)

Spark Plug Wire Set: Fiberglass Reinforced Latex Graphite Core

“Fit my 2005 GMC Sierra SLE perfectly”

from $11.49

(217)

Double Platinum Spark Plug

“ok”

from $5.99

(3)

Conventional Spark Plug

“Thank you…”

FAQs for 2003 GMC Sierra 3500 Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 2003 GMC Sierra 3500s?

Out of 105 Ignition and Tune-Up Products that fit 2003 GMC Sierra 3500s, the following parts are the top sellers:

Double Platinum Spark Plug (10422946) – $11.49
G-Power Spark Plug (TR5GP): Enhanced Durability & Fuel Efficiency (18090127) – $8.49
Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (15650198) – $11.49

What’s the price range for 2003 GMC Sierra 3500 Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 2003 GMC Sierra 3500 start at $3.29 and go up to $1,016.99 for the most premium parts.

What’s the average price of a Ignition and Tune-Up Product for a 2003 GMC Sierra 3500?

The average price for Ignition and Tune-Up Products for the 2003 GMC Sierra 3500 is $105.01. Keep in mind the variety of part types within our Ignition and Tune-Up Product category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Ignition and Tune-Up Products for other GMC Sierra 3500 model years?

Yes, we currently carry Ignition and Tune-Up Products for 5 model years of GMC Sierra 3500s between 2001 and 2007. Ignition and Tune-Up Products are bought most frequently for the following model years: 2007, 2006, 2005, 2004, 2002, and 2001.

What are the cheapest Ignition and Tune-Up Products for my 2003 GMC Sierra 3500?

The cheapest 2003 GMC Sierra 3500 Ignition and Tune-Up Products we carry in stock are:

Standard Spark Plug (AGSF52C): Reliable Performance & Durability (18090006) – $3.29
Mini Bulbs (Sold by each) (10853782) – $3.49
Copper Plus Spark Plug (RS12YC): Dependable Performance & Durability (5470017) – $3.69
168 Mini Bulbs (Sold by each) (5082080) – $3.79
Copper Resistor Spark Plug: Quick Starts & Enhanced Reliability (5393531) – $4.49

What are the top-rated Ignition and Tune-Up Products that fit the 2003 GMC Sierra 3500?

Out of 8,622 reviews by customers, our 2003 GMC Sierra 3500 Ignition and Tune-Up Products have an average customer rating of . These are some of the highest-rated Ignition and Tune-Up Product types for the 2003 GMC Sierra 3500 and their top-rated products:

Ignition Switches
- Ignition Starter Switch (10609047) – $38.99
Spark Plugs
- Ignition Starter Switch (10609047) – $38.99
Ignition Coils and Boots
- Ignition Starter Switch (10609047) – $38.99

What types of Ignition and Tune-Up Products do you sell for my 2003 GMC Sierra 3500?

As of 6/2/26, these are some of the most in-demand types of Ignition and Tune-Up Products for a 2003 GMC Sierra 3500:

Can I get help with 2003 GMC Sierra 3500 Ignition and Tune-Up Product orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about GMC Ignition and Tune-Up Products and more.

What is your return policy for GMC Sierra 3500 Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new GMC Sierra 3500 Ignition and Tune-Up Products and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2003 GMC Sierra 3500 Ignition and Tune-Up Products

GM Genuine Parts – Specific FitSpark Plug Wire (Part No.349V)

Dorman – Diesel Glow Plug Power Distribution Strap (Part No.904-109)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBC3654)

Carquest Premium – Diesel Glow Plug Controller (Part No.RAC1811)

Carquest Premium – Multi-Purpose Relay (Part No.RAA2671)

NGK – Premium OE Fit & Design Spark Plug Wire Set: Ferrite Mag Core, 8 Leads (Part No.51438)

DENSO – Platinum TT Spark Plug – PT16TT (Part No.4511)

GM Genuine Parts – Spark Plug Wire Heat Shield (Part No.8006)

Carquest – 168 Mini Bulbs (Sold by each) (Part No.CQ-168)

GM Genuine Parts – Glow Plug (Part No.62G)

MSD Ignition – Wire Set – Street Fire, GM Truck 4.8L/5.3L/6.0L (Part No.5574)

Carquest Premium – Ignition Switch (Part No.CSC1304)

Carquest Premium – Multi-Use Connector (Part No.PTA1397)

Dorman – Help – Knock Sensor Grommet (Part No.42003)

GM Genuine Parts – Fuel Injection Fuel Rail Bolt (Part No.12554211)

Dorman – Knock Sensor and Harness Kit (Part No.926-084)

MSD Ignition – Ignition Coils, Blaster LS, for 2005-2013 GM LS2/LS3/LS4/LS7/LS9 Engines, 8-Pack (Part No.82658)

GM Genuine Parts – Ignition Coil (Part No.19418993)

GM Genuine Parts – Spark Plug Wire Set (Part No.19417606)

MSD Ignition – Wire Set – GM Truck, 8.1L with HG, 2001 (Part No.39849)

GM Genuine Parts – 6-Way Female Black Multi-Purpose Pigtail (Part No.PT392)

MSD Ignition – Ignition Coils, Black, GM L-Series Truck, 1999-2007, 8-Pack (Part No.826383)

Accel – Coil:Gm Ls2 Ls3 Ls7 8-Pack-Black (Part No.140043K-8)

MSD Ignition – Super Conductor Spark Plug Wire Set – 1999-2013 GM Truck & SUV, Red (Part No.32829)

DENSO – Spark Plug Wire Set: Aluminum Steel Core, 8 Wire Set (Part No.671-8063)

GM Genuine Parts – Ignition Coil Wire (Part No.356G)

ACDelco – Double Platinum Spark Plug (Part No.41-962)

NGK – Iridium IX Spark Plug (TR55IX): Outstanding Acceleration & Durability (Part No.7164)

DENSO – Iridium Long-Life Spark Plug: OE Performance, ZTJ16R10 (Part No.5090)

ACDelco – Conventional Spark Plug (Part No.R44LTSM6)

Bosch – OE Fine Wire Double Iridium Spark Plug: High Performance & Longevity (Part No.9602)

DENSO – Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, TJ14R-P15 (Part No.5071)

NGK – Laser Iridium Spark Plug (IZTR5B11): Fine Wire Tip for Efficiency (Part No.1465)

Motorcraft – Standard Spark Plug (AGSF52C): Reliable Performance & Durability (Part No.SP-442)

NGK – V-Power Nickel Spark Plug (TR55): Enhanced Ignitability & Performance (Part No.3951)

NGK – V-Power Nickel Spark Plug (TR5): Enhanced Ignitability & Reliability (Part No.2238)

NGK – G-Power Platinum Spark Plug (TR55GP): Enhanced Durability & Efficiency (Part No.3403)

NGK – G-Power Spark Plug (TR5GP): Enhanced Durability & Fuel Efficiency (Part No.3186)

ACDelco – Conventional Spark Plug (Part No.R44LTSM)

Autolite – Platinum Spark Plug: Improved Performance & Durability (Part No.AP5245)

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT16TT (Part No.4713)

Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP5245)

NGK – Iridium IX Spark Plug (TR5IX): Extreme Ignitability & Durability (Part No.7397)

Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Reliability (Part No.5245)

DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT16 (Part No.5325)

Champion – Copper Plus Spark Plug (RS12YC): Dependable Performance & Durability (Part No.401)

ACDelco – RAPIDFIRE Spark Plug (Part No.14)

E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.44)

DENSO – Platinum TT Spark Plug – PT16TT (Part No.4511)

E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.54)

MSD Ignition – Wire Set – GM Truck, 8.1L with HG, 2001 (Part No.39849)

Edelbrock – Max-Fire (Ultra-Spark 50) GM LS Truck Spark Plug Wire Set (Part No.22716)

GM Genuine Parts – Spark Plug Wire Set (Part No.19417606)

ACDelco – Spark Plug Wire Set: Fiberglass Reinforced Latex Graphite Core (Part No.9748HH)

ACDelco – Specific FitSpark Plug Wire Set: Fiberglass Reinforced Latex Graphite Core (Part No.9748GG)

MSD Ignition – Ignition Coil, GM External HEI, High Performance (Part No.8226)

MSD Ignition – Super Conductor Spark Plug Wire Set – 1999-2013 GM Truck & SUV, Red (Part No.32829)

Carquest Premium – Ignition Coil (Part No.EBC1345)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1347)

Carquest – Ignition Coil: Meets OE Specifications, 1 Count (Part No.26C1047)

Carquest – Ignition Coil (Part No.26C1048)

NGK – Premium Coil Near Plug Type Ignition Coil: Meets or Exceeds OE Specifications (Part No.48658)

NGK – Premium Coil Near Plug Type Ignition Coil: Meets or Exceeds OE Specifications (Part No.49081)

Delphi – Ignition Coil (Part No.GN10298)

Delphi – Ignition Coil (Part No.GN10119)

GM Genuine Parts – Fuel Injection Fuel Rail Bolt (Part No.12554211)

GM Genuine Parts – Black Multi-Purpose Pigtail (Part No.PT2135)

DENSO – Spark Plug Wire Set: Aluminum Steel Core, 8 Wire Set (Part No.671-8063)

GM Genuine Parts – Ignition Coil Wire (Part No.356G)

MSD Ignition – Ignition Coil, GM L-Series Truck, 1999-2009, Single (Part No.8264)

MSD Ignition – Ignition Coil, GM L-Series Truck, 1999-2007, Single (Part No.8263)

GM Genuine Parts – Ignition Coil (Part No.19418993)

MSD Ignition – Ignition Coils, GM L-Series Truck, 1999-2009, 8-Pack (Part No.82648)

NGK – Premium OE Fit & Design Spark Plug Wire Set: Ferrite Mag Core, 8 Leads (Part No.51430)

MSD Ignition – Ignition Coils, Pro Power, GM L-Series Truck, 1999-2007, 8-Pack (Part No.82868)

MSD Ignition – Ignition Coils, High-Performance LS, 8-Pack (Part No.82628)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 8 Count (Part No.EBC1345-8)

Carquest Premium – Spark Plug Wire Set: 8 Wires, Increased performance, Designed for direct fit (Part No.35-8343)

Carquest Premium – Spark Plug Wire Set: 8 Wires, Increased performance, Designed for direct fit (Part No.35-8158)