2003 Chevrolet Trailblazer Ext Ignition and Tune-Up Products

Essential 2003 Chevrolet Trailblazer Ext Ignition and Tune-Up Products

Delphi – Delphi Ignition Wire Set (Part No.F1020361164DEL)

Delphi Ignition Wire Set

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$155.58
Delphi’s Ignition Group supplies high quality ignition products that meet diverse application needs for Original Equipment Manufacturers (OEM), Delphi Aftermarket, and motorsports customers. Delphi Packard Electric produces many cable types that meet the increased energy needs of leaner burning engines, withstand high operating temperatures, and meet strict suppression requirements for electromagnetic interference (EMI). Delphi ignition cables are made with multiple layers of non-conductive materials over the selected core in order to optimize the desired properties of the finished cable (dielectric strength, mechanical strength, flexibility, and temperature resistance).

Product Features:
  • 40,000 volt systems
  • Temperature ranges from -40C to 260C
  • Radio frequency interference suppression
  • 160,000 km product life
  • Resistance to ozone, corona, and fluids
  • Sound mechanical connections to spark plugs, distributors, and coils
  • Protection from weather, elements, and temperature
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Carquest Premium – Ignition Switch (Part No.CSA1039)

Ignition Switch

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$46.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Dorman – Knock Sensor And Harness Kit (Part No.926-084)

Knock Sensor And Harness Kit

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$94.99
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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Carquest Premium – Ignition Coil Seal (Part No.FAA1099)

Ignition Coil Seal

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$18.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Designed to match OE in form to ensure proper, trouble free fit
  • Premium quality materials for longer service life
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Carquest Premium – Ignition Coil Connector (Part No.PTA1566)

Ignition Coil Connector

from

$19.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • 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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Delphi – Knock Sensor (Part No.AS10261)

Knock Sensor

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$21.99
Manufactured to meet or exceed OE requirements; Delphi Knock Sensors help maximize engine performance with all fuels; Delphi Knock Sensors prevent against engine damage from pre-ignition knocking.

Product Features:
  • Flat frequency response allows the same sensor to be used on different engines and the sensor responds to knock frequencies higher than the primary frequency
  • Delphi knock sensors prevent against engine damage from pre-ignition knocking
  • Calibrated for a wide variety of frequencies to detect shifts, and adjust to provide accurate signals to help maximize engine performance
  • Flat frequency response allows the same sensor to be used on different engines and the sensor responds to knock frequencies higher than the primary frequency
  • Ground-isolated design with 2-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)
  • Self-generating piezoelectric design requires no power to the sensor
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Dorman – Rivet-Push In-Hole Diameter .250 In. (Part No.45612)

Rivet-Push In-Hole Diameter .250 In.

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$2.29
Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long service life.

Product Features:
  • Ideal replacement – this retainer matches the fit and function of the original equipment retainer for this vehicle application
  • Quality material – this retainer is made of durable material for long-lasting service
  • Versatile design – this retainer is suitable for a variety of automotive uses
  • Excellent value – this part offers original equipment quality at a competitive cost
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ACDelco – Spark Plug Wire Heat Shield (Part No.8006)

Spark Plug Wire Heat Shield

from

$8.49
ACDelco GM Original Equipment Spark Plug Heat Shields help protect the spark plug insulator and plug wire boot from the heat of the exhaust manifold, and are GM-recommended replacements for your vehicle’s original components. These original equipment heat shields have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Helps protect spark plug boot from cracking and deteriorating from heat
  • 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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NGK – Coil on Plug Boot (Part No.58921)

Coil on Plug Boot

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$5.79
NGK Coil on Plug Boots are built to stringent OEM tolerances, combining original equipment fit, design and outstanding durability. NGK Coil on Plug Boots are manufactured using only premium silicone and always include any required internal springs and ferrite resistors for superior performance and RFI noise suppression. Bridging the important link between ignition coil and spark plug, COP boots should always be replaced with NGK Coil on Plug Boots at the time as changing spark plugs to prevent ignition problems such as flashover.

Product Features:
  • PREMIUM GRADE SILICONE: Designed to withstand harsh environments
  • OEM MATCHED: Includes all required internal springs and ferrite resistors for superior performance and RFI noise suppression
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Accel – Ignition Coils (Part No.140043K-8)

Ignition Coils

from

$533.99
Ignition Coils

Carquest Premium – Engine Crankshaft Position Sensor Connector (Part No.PTA1136)

Engine Crankshaft Position Sensor Connector

from

$69.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • 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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Carquest Premium – Distributor Ignition Pickup Connector (Part No.PTA1044)

Distributor Ignition Pickup Connector

from

$17.79
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • 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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WSO – Ignition Coil (Part No.F3000418258WSO)

Ignition Coil

from

$60.17
WORLD SOURCEONE ignition coils are designed to operate reliably and dependably under all operating conditions and engine rpm ranges, providing the highest engine performance, low exhaust emissions, and fuel economy objectives. Every WSO ignition coil is developed and designed for its specific application, and engineered for maximum performance.

Product Features:
  • OE-Equivalent and a direct fit application
  • Superior, reliable performance compared to competitive products
  • Lower cost alternative to original equipment
  • No additional time consuming steps needed for installation
  • Factory original equipment connectors
  • Improved coil efficiency reduces the need to generate excessive high voltage
  • Designed to provide durability and performance
  • Noise abatement technology to eliminate audible coil noise
  • Lower primary inductance provides high-speed performance
  • Maximum available voltage under all operating conditions
  • TS 16949 Certification
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Carquest – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.26C1006)

Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece

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$73.99
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.

Product Features:
  • 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.
  • 100% pure copper precision-wound windings increase coil life and ensure reliability and maximum coil output when needed.
  • Highly conductive aluminum alloy secondary terminal guarantees secondary coil terminals will not oxidize (rust), will provide excellent conductivity, extended coil life and will not cause excessive stress on the primary control circuit.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure confidence and product reliability, every time.
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E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.66)

DiamondFIRE Automotive Spark Plug: More Power, Saves Gas

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$6.99
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. E3.66 is a 14mm, 1.000 reach plug with a taper seat. It fits a wide variety of late model applications, especially Hemi applications. E3.66 is widely stocked in automotive retail stores. 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 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.
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DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, ITL16TT (Part No.4717)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, ITL16TT

from

$12.99
Durability of an OE style plug combined with Power & Torque of high performance.

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 & Torque of high performance.
  • Withstands temperatures greater than 4000¦ Fahrenheit
  • Iridium TT
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Carquest Premium – Exhaust Gas Recirculation (EGR) Vacuum Regulator Solenoid Connector (Part No.PTA1107)

Exhaust Gas Recirculation (EGR) Vacuum Regulator Solenoid Connector

from

$24.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • 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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Dorman – Help – Knock Sensor Grommet (Part No.42003)

Knock Sensor Grommet

from

$14.99
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 & 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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Suncore – Gas Shock (Part No.12S251120)

Gas Shock

from

$39.99
Gas Shock

Idemitsu – Type HP Automatic Transmission Fluid – 1 qt (Part No.10107-042F)

Type HP Automatic Transmission Fluid - 1 qt

from

$10.29
Formulated to meet the specific requirements of Subaru vehicles equipped with conventional (non-CVT) transmissions up to model year 2005. Recommended for service-fill in all Subaru automatic transmissions where SUBARU ATF HP is specified. Fuel economy demands and more sophisticated electronic controls have made automatic transmissions not only more complex, but also unique to each vehicle manufacturer. Long gone are the days of having just a couple choices of automatic transmission fluid type. IDEMITSU is the factory fill Automatic Transmission Fluid (ATF) supplier to most Asian imports. IDEMITSU application-specific ATF products match the exact friction materials and performance requirements of each different vehicle model for which they are made.

Product Features:
  • Excellent resistance to oxidation and thermal breakdown provide long fluid life and extended protection
  • Precisely engineered frictional characteristics guarantee smooth shifting and outstanding anti-shudder performance
  • Provides superior cleanliness, maintaining the transmission free of sludge and varnish deposits
  • Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
  • Advanced anti-wear technology provides maximum protection to gears and bearings
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ACDelco – Spark Plug Wire (Part No.356F)

Spark Plug Wire

from

$28.99
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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ACDelco – Specific FitSpark Plug Wire (Part No.356E)

Specific FitSpark Plug Wire

from

$29.99
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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Carquest Premium – ABS Wheel Speed Sensor Connector (Part No.PTA1003)

ABS Wheel Speed Sensor Connector

from

$22.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

2003 Chevrolet Trailblazer Ext Ignition and Tune-Up Products

You count on your 2003 Chevrolet Trailblazer Ext to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Ignition and Tune-Up Products. With 95 Ignition and Tune-Up Products ranging in price from $2.29 to $604.99, you’re sure to find everything you need for your 2003 Chevrolet Trailblazer Ext.

Brands matter. If you want to shop a specific Ignition and Tune-Up Products brand, we stock 21 different brands like AC Delco, Autolite, and NGK. 2003 Chevrolet Trailblazer Ext Ignition and Tune-Up Products start as low as $2.29!

One of the best ways to find top quality OEM or aftermarket Ignition and Tune-Up Products is by asking professionals. Short of that, you can shop with confidence thanks to our 5,751 extensive product reviews on 2003 Chevrolet Trailblazer Ext Ignition and Tune-Up Products. Some of the top-rated Ignition and Tune-Up Products products we carry are DiamondFIRE Automotive Spark Plug: More Power, Saves Gas with 4.4 stars and Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life with 4.7 stars.

Did we mention you can order your Ignition and Tune-Up Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Ignition and Tune-Up Products inventory for your 2003 Chevrolet Trailblazer Ext below to get started!

Top-Rated Ignition and Tune-Up Products Brands For Your 2003 Chevrolet Trailblazer Ext

Trusted Ignition and Tune-Up Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Chevrolet Trailblazer Ext running right for years to come. In our inventory you’ll find brands like AC Delco, Autolite, NGK, and even more.

Popular Carquest Ignition and Tune-Up Products

You’ll find popular Carquest brand products across Ignition Coils and Boots and Ignition Switches. All are waiting to get your 2003 Chevrolet Trailblazer Ext back on the road. Some of the top-rated Carquest products in these categories are:
Ignition Coil
from $80.05
(29)
Ignition Coil
Ignition Coils
Ignition Switch
from $44.05
(25)
Ignition Switch
Ignition Starter Switches

Top-Rated Autolite Iridium Ignition and Tune-Up Products


If Autolite Iridium are what you’re looking for, our inventory holds plenty. We stock Autolite Iridium brand Ignition and Tune-Up Products for your 2003 Chevrolet Trailblazer Ext, and some of our most reviewed Autolite Iridium parts include:

FAQs for 2003 Chevrolet Trailblazer Ext Ignition and Tune-Up Products

What are the most purchased Ignition and Tune-Up Products for the 2003 Chevrolet Trailblazer Ext?

Out of 95 Ignition and Tune-Up Products for the 2003 Chevrolet Trailblazer Ext, the most popular in our inventory are:

What are the top-rated 2003 Chevrolet Trailblazer Ext Ignition and Tune-Up Products?

Top-rated Ignition and Tune-Up Products for your 2003 Chevrolet Trailblazer Ext based on customer reviews/ratings are:
DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
from $8.49
(176)
DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
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