1998 Audi A4 Ignition and Tune-Up Products

Name: Ignition Switch
Brand: Carquest Premium
SKU: CSA1263
Price: 66.99 USD

Below you will find various in-demand Audi Ignition and Tune-Up Products, components and accessories for your 1998 A4. Advance Auto Parts has popular A4 parts like Ignition Switches, Ignition Coils and Boots, Ignition Boots and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other A4 model years including 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 and more. Select a category of 1998 Audi A4 Ignition and Tune-Up Products below and start saving instantly.

Popular 1998 Audi A4 Ignition and Tune-Up Products Categories

Ignition Module and Controls

Ignition Coil Connectors

Ignition Starter Switches

Spark Plug Non-Foulers

Essential Ignition and Tune-Up Products for 1998 Audi A4s

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$66.99

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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$247.99

This replacement ignition switch is a direct replacement for a damaged or worn-out original equipment switch Made of quality materials for durability, this part has been tested to ensure a proper fit.

Product Features:

Ideal replacement – this ignition switch matches the fit and function of the original equipment switch to restore proper operation to the ignition circuit
Durable construction – this ignition switch is made of quality materials to ensure reliable performance and a long service life
Cost-effective solution – offers original equipment performance at competitive price
Quality tested – this part has undergone try-on testing to ensure a quality fit

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$50.99

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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$13.99

NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug, Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.

Product Features:

HIGH IGNITABILITY PROJECTED SQUARE PLATINUM ELECTRODE DESIGN: Combines 0.6 millimeter ruthenium center with a unique cut-back PSPE ground electrode
RUTHENIUM ALLOY CENTER ELECTRODE: NGK’s patented ruthenium technology produces maximum performance, ignitability & durability at high temperatures
PSPE DESIGN: Projected square platinum electrode shape of the ground electrode provides the best ignitability and service life for high heat engines
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: Modern vehicles using OE PSPE type spark plugs or for those seeking an aftermarket plug with the latest OE technology
Enhanced Fuel Burn: Provides a more complete fuel burn, resulting in quicker throttle response, smoother idle, and better cold starts.
Industry-Leading Durability: Ruthenium center electrode ensures exceptional durability and longevity.

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$10.99

Autolite Iridium Ultra Laser Fine wire Spark Plugs are one of our brand’s most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world.

Product Features:

Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.
A laser-welded 0.5mm pure iridium finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.
Nickel-plated shell to resist corrosion.
High-alumina ceramic insulator for increased strength.
Laser welded 0.5mm Iridium finewire center electrode.
Proprietary platinum sidewire technology.

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$3.99

Autolite Copper spark plugs are designed to provide reliable performance and quick starts, making them an essential choice for maintaining your vehicle’s efficiency. 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 are engineered for extended life, while the high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation strength. With a nickel-plated shell, these plugs resist corrosion, offering durability for long-term use. The mid-projection standard center electrode design, combined with nickel tip materials, ensures optimal spark delivery. Designed with a gasket seat type and equipped with a resistor, these spark plugs meet regular-grade specifications, making them a dependable option for a wide range of applications.

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.
The mid-projection standard center electrode design ensures precise spark delivery for consistent engine performance.

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$9.99

This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.

Product Features:

Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
Durable construction – 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

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$198.99

NGK tinned copper core wire sets provide excellent OE fit, performance and durability. High-temp premium silicone outer jacket and inner EPDM/silicone insulation contain high voltage currents for excellent dielectric strength. As required on certain European models, NGK utilizes a premium 29 gauge galvanized, tinned core wire. RFI suppression is located close to the source and thus built into NGK’s OE designed spark plug and distributor connectors and metallic resistor boots. Spark plug boots are glued to NGK cable with a silicone sealer for a watertight seal.

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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$157.99

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

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$12.49

Carquest Premium spark plug boots are engineered to restore ignition boot reliability and performance. They are designed to meet or exceed original equipment (O.E.) specifications for fit, form and function. Our spark plug boots offer excellent heat resistance as well as maximum protection against spark loss. Carquest Premium spark plug boots are built with a durable silicone compound for resistance to high heat and abrasion, resulting in a longer-lasting ignition repair.

Product Features:

Product Features:

OE design provides an exact fit for your application
Provides excellent heat resistance as well as maximum protection against spark loss
Durable silicone compound for resistance to high heat or abrasion
Spring included with the spark plug boot
Design for direct compatibility
Multipack provides one time replace all COP for better deal

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$62.99

URO Parts has been a leading brand of replacement auto parts for European vehicles for more than thirty years. Affordable yet dedicated to quality, URO Parts controls its production process in strict accordance with ISO/TS 16949 QMS specifications and offers a wide variety of components used to restore or repair engine, electrical, drive train, braking, steering, suspension, climate control, cooling, exhaust, and fuel systems in classic to late-model German, British, and Scandinavian vehicles. Looking for parts that are even higher quality than original equipment? URO Parts engineers analyze common failures and identify weaknesses in original equipment parts when creating URO Premium components, which are superior to OE in performance and reliability thanks to improved materials and more robust designs. Thanks to high-quality, competitively-priced URO Parts and bulletproof URO Premium replacement components, owning a prestigious European vehicle is no longer an expensive luxury reserved for the elite and wealthy.

Product Features:

Guaranteed Fitment
High Quality Materials
Guaranteed fitment
A failing ignition control module can lead to poor performance or even a stalled engine
Direct-fit OE replacement design instantly restores factory ignition control module function
Alloy conductors minimize electrical resistance for precise control of ignition timing
Manufactured using high-quality materials to withstand intense engine compartment heat

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$239.99

The Premium CarQuest Vehicle Solutions line is designed for OE form, fit and function for both import and domestic vehicles. The A/C Pressure Relief Valve is used in the automotive air conditioning system to prevent unusual over-pressure that may cause damage to critical components within the system or to the system as a whole. By opening it’s valve when the system pressure exceeds the preset pressure levels and closing when the internal pressure decreases to the preset pressure levels, proper factory designated system pressures are maintained.

Product Features:

CARQUEST Ignition Modules creates and refines the timing of the engine using various sensors and readings throughout the spark system in order to create an efficiently running engine.
CARQUEST Ignition Modules use current and voltage limiting circuitry in order to prevent the ignition coil from over voltage/current. Over voltages can allow for coils to create excessive heat which can damage to the ignition module resulting in check eng
CARQUEST Ignition Modules are 100% individually tested for all product functionalities including over voltage, timing and dwell.

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$119.99

CARQUEST Ignition Modules are built by an ignition systems manufacturer with expertise in the entire vehicle spark system.

Product Features:

CARQUEST Ignition Modules creates and refines the timing of the engine using various sensors and readings throughout the spark system in order to create an efficiently running engine.
CARQUEST Ignition Modules use current and voltage limiting circuitry in order to prevent the ignition coil from over voltage/current. Over voltages can allow for coils to create excessive heat which can damage to the ignition module resulting in check eng
CARQUEST Ignition Modules are 100% individually tested for all product functionalities including over voltage, timing and dwell.

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$150.99

The ignition control module controls the primary side of the ignition coil and in some applications is able to control ignition timing. The ignition control module receives a signal from a pick-up coil located in the distributor or from the engine control module (ECM) to identify piston location.

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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$54.99

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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$49.49

As the innovator and leader in stick coil technology DENSO has conducted superior testing and inspection processes to insure the highest quality ignition coil. Don’t be fooled by imitations – look for the DENSO name to be sure you’re getting the best.

Product Features:

First Time Fit
Built to DENSO Original Equipment Standards

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$65.99

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
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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$46.49

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 operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

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$58.99

Carquest Premium knock sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium knock sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. We utilize advanced technology to design sensors that are, in many cases, stronger than OE parts. Carquest Premium knock sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium knock sensors 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:

Designed to meet or exceed OE specifications for fit, form and function
Trivalent iridescent chromate plating prevents corrosion
Silicone seals prevent moisture intrusion preventing false codes and sensor failure
Wiring harnesses utilize high-temperature insulation when applicable
Extensive design validation testing and 100% end-of-line tested
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$24.29

Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.

Product Features:

Delphi knock sensors help maximize engine performance with all fuels
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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$59.99

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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$91.99

Designed to meet or exceed OE specifications for fit, form and function
Trivalent iridescent chromate plating prevents corrosion
Silicone seals prevent moisture intrusion preventing false codes and sensor failure
Wiring harnesses utilize high-temperature insulation when applicable
Extensive design validation testing and 100% end-of-line tested
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$63.99

Bosch OE quality knock sensors for optimum engine protection and fuel consumption reduction up to 9%

Product Features:

Bosch OE quality knock sensors for optimum engine protection
Bosch OE quality knock sensors improve combustion efficiency and reduce fuel consumption up to 9%
Bosch OE quality knock sensors increase torque up to 5%
Bosch OE quality knock sensors enable the use of multiple quality fuels with various anti-knock properties

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$64.99

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.
Product constructed to meet all design and operating characteristics as intended by the manufacturer.

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$21.99

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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$34.99

Carquest 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.

Upgrade your 1998 Audi A4 with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 1998 Audi A4, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Audi or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your A4 functioning at its best. At Advance Auto Parts, we offer a wide selection of 40 Ignition and Tune-Up Products for the 1998 Audi A4, designed to meet your needs without breaking the bank. From Ignition Switch replacements to Ignition Coils and 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 1998 Audi A4 at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $3.49 to $247.99, with an average price of $43.94. Our 40 Ignition and Tune-Up Products in stock come from 11 trusted brands, so you’re sure to find the right part for your 1998 Audi A4 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 1998 Audi A4, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like NGK, DENSO, Autolite, and more. NGK Ignition and Tune-Up Products start at just $10.49 and boast an impressive 4.8 stars average rating from customers. DENSO and Autolite also bring quality to the table, with Ignition and Tune-Up Products available starting at $3.99, and at an average 4.6 stars rating. With 2,983 customer reviews and counting, our 1998 Audi A4 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 1998 Audi A4 is always ready to roll. We’re committed to providing you with everything you need to keep your A4 in top shape, all in one place. Start shopping confidently below for your 1998 Audi A4!

Best-Selling Ignition Switches for 1998 Audi A4s

Enhance the driving experience in your Audi with 3 quality Ignition Switch components, starting at $11.99.

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from

$66.99

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.

from

$11.99

Guaranteed Fitment
High Quality Materials
Designed and tested to provide a long life
Guaranteed fitment
Replacement of worn or failing OE starter switch instantly restores easy key rotation and positive engagement of starter
Direct-fit OE replacement design for easy plug-and-play installation
Manufactured using high-quality polymer and corrosion-resistant metal materials to withstand intense passenger compartment heat
Alloy conductors minimize electrical resistance for accurate operation

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$247.99

Ideal replacement – this ignition switch matches the fit and function of the original equipment switch to restore proper operation to the ignition circuit
Durable construction – this ignition switch is made of quality materials to ensure reliable performance and a long service life
Cost-effective solution – offers original equipment performance at competitive price
Quality tested – this part has undergone try-on testing to ensure a quality fit

Most Popular 1998 Audi A4 Ignition Coils and Boots

Customize your Audi with 6 Ignition Coils and Boots products like Ignition Coils and Ignition Coil Connectors, all priced under $178.99.

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$46.49

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

from

$178.99

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

from

$138.99

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

from

$59.99

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

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$81.99

ACCEL Super Coils feature advanced bobbin technology, highly specialized silicon magnetic steel cores, optimized windings, proper resistance and engineered turn ratios that deliver a high performance, quality coil. Specialized high temperature epoxy resists shock and vibration, while increasing thermal conductivity. These are direct high performance replacements for OEM coils

Product Features:

High temp epoxy resists shock and vibration
Advanced bobbin technology
Installation usually in less than an hour
Direct OEM replacement
OBD II compatible – will not trip a code

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$64.99

Carquest 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.

Top Picks for 1998 Audi A4 Ignition Boots

Upgrade Audi A4s with top-quality Ignition Boots parts, including 2 OEM and aftermarket selections for your 1998 model.

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from

$157.99

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

$12.49

Product Features:

OE design provides an exact fit for your application
Provides excellent heat resistance as well as maximum protection against spark loss
Durable silicone compound for resistance to high heat or abrasion
Spring included with the spark plug boot
Design for direct compatibility
Multipack provides one time replace all COP for better deal

In-Demand Spark Plugs for 1998 Audi A4s

Select from 24 premium Spark Plugs parts for your 1998 Audi A4, with prices ranging from $3.49 to $21.99.

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$16.99

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

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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, withstanding temperatures exceeding 4000 Deg F. Its U-groove and taper-cut ground electrode design optimizes flame propagation, enhancing overall engine performance. The burnished nickel plating provides superior resistance to high temperatures and corrosion, ensuring long-lasting performance. Designed with a flat seat type and crafted from premium iridium material, this spark plug is built to deliver consistent energy and durability. With a wide range of part numbers available, it is compatible with thousands of applications, including classic and collector cars. Choose this spark plug for a perfect blend of cutting-edge technology, durability, and 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

from

$9.29

The Double Platinum Power Spark Plug (RC10PLPB4) is engineered for enhanced ignitability and long-lasting durability, making it a premium choice for reliable engine performance. Featuring a fine-wire platinum center electrode and a platinum pad ground electrode, this spark plug ensures greater wear resistance and a sharper, more focused spark. The innovative Heat-Active alloy allows the electrodes to maintain an optimal operating temperature under all engine loads, ensuring consistent performance and efficiency. Its V-trimmed ground electrode design further enhances spark focus, while the resistor type construction minimizes electrical interference. Designed as a standard replacement with a flat seat type, this spark plug is built to deliver powerful performance and maintain stable operation, making it an excellent choice for drivers seeking durability and precision in their ignition system.

Product Features:

Double Platinum Power – Premium Spark Plug. More Powerful Performance.
Platinum center and ground electrode for greater wear resistance
Maintains stable operating temperature under all engine loads
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature

from

$5.29

Champion Platinum Power spark plugs are engineered for premium performance and durability, making them an excellent choice for maintaining your vehicle’s peak efficiency. Featuring a platinum-tipped center electrode, these spark plugs ensure long-lasting reliability and resist wear, maintaining the proper gap specification throughout their lifespan. The fine-wire center electrode enhances ignitability, while the V-trimmed ground electrode sharpens spark focus for improved combustion. Constructed with an exclusive Heat-Active alloy, these plugs quickly reach and maintain optimal operating temperatures, ensuring consistent performance under various driving conditions. Designed with a flat seat type and integrated resistor, they deliver smooth operation and compatibility with a wide range of vehicles. Upgrade to Champion Platinum Power spark plugs for a blend of cutting-edge technology and dependable performance.

Product Features:

Platinum Power- Premium Spark Plug. Powerful Performance.
Platinum center electrode for long life
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature
Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug

from

$21.99

NGK Laser Platinum spark plugs provide high ignitability and longer service life compared to conventional nickel spark plugs. Laser Platinum plugs are tested to the highest standards to ensure quality and durability. Engineered specifically for OE applications. Laser platinum plugs provide stable idling, superior anti-fouling, improved fuel efficiency and lower emissions. High-grade pure alumina ceramic and 98% pure copper core prevents spark plug from overheating and provides reliable starts. Most Laser Platinum 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 platinum alloy center electrode provides consistent performance
PLATINUM ALLOY CENTER ELECTRODE: Longer wearing and higher temperature resistance compared to traditional nickel spark plugs
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 platinum alloy plugs

from

$10.99

ACDelco Gold (Professional) Double Platinum Spark Plug are a high quality alternative to Original Equipment (OE) parts. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. 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:

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 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

from

$10.49

NGK Standard spark plugs (in the iconic NGK ‘yellow box’ packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. 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 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

from

$7.99

The U-Groove Spark Plug features an OEM-specified special ground electrode configuration designed for optimal performance and reliability. Its precision machine-rolled threads minimize the risk of seizing or cross-threading, making it ideal for delicate aluminum heads. With a durable nickel center electrode tip, this spark plug ensures long-lasting performance, boasting a lifespan of over 30,000 miles. Pre-fired for dependable operation, it delivers consistent ignition and smooth engine performance. The flat seat type and wide range of part numbers make it compatible with thousands of applications, including classic and collector cars. Built to last twice as long as conventional plugs, this spark plug offers exceptional value and durability, making it a trusted choice for maintaining OE performance in your vehicle.

Product Features:

OEM specified special ground electrode configuration
Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
Wide range of part numbers for thousands of applications, including classic and collector cars
Lasts twice as long as most conventional plugs
100 percent pre-fired to assure reliable operation
U-Groove Conventional
Durable Nickel Center Electrode Tip: Ensures long-lasting performance and reliability, with a lifespan of over 30,000 miles.

from

$12.99

Experience the perfect blend of durability and high performance with this spark plug, designed to deliver exceptional power and torque. Featuring a 0.4mm Iridium Center Electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm Needle Tip Ground Electrode enhances 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, enduring temperatures over 4000 Deg F. The advanced 360-degree laser welding process ensures a robust bond and structural integrity, while the Twin-Tip Technology combines a fine wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode for superior ignition. With over 100,000 miles of reliable performance, this plug enhances fuel economy, reduces emissions, and is crafted from premium materials for long-lasting endurance. Its flat seat type design further optimizes performance, making it a top-tier choice for drivers seeking ultimate efficiency and power.

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
Ultimate Endurance and Power: The DENSO Iridium TT Spark Plug features a 0.7mm Iridium Tip, ensuring over 100,000 miles of uncompromised performance.
Advanced Twin-Tip Technology: Developed from Original Equipment Specification Super Ignition Plug (SIP) design, combining a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode.
Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
Premium Materials: Features an Iridium Center Electrode Tip and a Flat Seat Type for optimal performance and durability.

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$10.99

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.

Product Features:

0.6 mm finewire design improves ignitability
Patented V-trimmed platinum sidewire technology resists wear
OE equivalent design is engineered for every engine
Designed for better overall durability with virtually no gap erosion
Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.
Designed and Engineered in the USA: Reflects over 100 years of Autolite’s engineering experience and expertise.
Gasket Seat Type: Ensures a secure and proper fit for optimal performance.

from

$4.99

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 acceleration while boosting fuel efficiency. The platinum firing tip resists gap erosion, extending service life, while the high alumina ceramic insulator offers excellent thermal conductivity and insulation for added strength. A multi-rib insulator prevents flash-over, and the nickel-plated shell resists corrosion for long-lasting reliability. Designed with a flat gasket seat type, these spark plugs provide a secure seal for optimal engine performance. With a mid-projection standard center electrode and nickel ground electrode tip, they deliver consistent performance for demanding conditions. Perfect for performance-grade applications, these spark plugs combine advanced materials and engineering to ensure your engine runs smoothly and efficiently.

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.
Gasket Seat Type: Equipped with a gasket seat type, these spark plugs provide a secure and effective seal for optimal engine performance.

from

$3.99

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.
The mid-projection standard center electrode design ensures precise spark delivery for consistent engine performance.

from

$6.99

Autolite Double Platinum spark plugs are engineered for exceptional durability and performance, making them an ideal 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 plugs to withstand high temperatures and pressures for greater longevity. A high alumina ceramic insulator provides optimal thermal conductivity and dielectric strength, while the multi-rib insulator design prevents flash-over for reliable operation. With a mid-projection center electrode and platinum tips on both the center and ground electrodes, these plugs deliver consistent performance and efficiency. Backed by over a century of engineering expertise and a legacy of over 11 billion plugs sold, Autolite guarantees proven quality and reliability. Designed for performance-grade applications, these spark plugs are a smart upgrade over copper and standard platinum options, ensuring your engine runs smoothly and efficiently.

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.
Proven Quality: Backed by over 100 years of engineering expertise and over 11 billion plugs sold, Autolite delivers exceptional quality and performance.

from

$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

from

$3.99

The Platinum TT Spark Plug with its advanced twin-tip design ensures faster flame propagation for more complete combustion, enhancing ignition performance and efficiency. Featuring a platinum center electrode, it delivers excellent conductivity and durability, while the titanium-enhanced ground strap ensures superior performance and extended lifespan. The flat seat type provides a secure fit, making it compatible with a variety of vehicles. Designed for reliability and longevity, this spark plug is a dependable choice for maintaining consistent engine performance. Its high-quality materials and innovative design make it a valuable addition to your vehicle’s ignition system.

Product Features:

Platinum Twin-Tip Design: Features a platinum twin-tip design for enhanced ignition performance and efficiency.
Titanium-Enhanced Ground Strap: Equipped with a titanium-enhanced ground strap, ensuring superior performance and longevity.
High-Quality Platinum Center Electrode: The center electrode tip is made from high-quality platinum, providing excellent conductivity and durability.
Superior Performance and Longevity: Designed to deliver superior performance and extended lifespan, making it a reliable choice for your vehicle’s ignition needs.
Flat Seat Compatibility: The flat seat type ensures a secure and precise fit, making it suitable for a wide range of vehicle applications.

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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 and faster flame kernel. This translates to improved power output by up to 6% on average and significant fuel savings, while also reducing engine carbon deposits for a cleaner burn. Constructed with durable nickel for both the center and ground electrode tips, this spark plug is built to last. Its gasket seat type ensures a secure fit, and the pre-gapped design eliminates the need for adjustments, making installation hassle-free. Upgrade to this advanced spark plug for enhanced engine performance, better fuel efficiency, and a cleaner, more reliable ride.

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.

from

$7.49

The U-Groove Spark Plug is engineered with an OEM-specified special ground electrode configuration, ensuring optimal performance and reliability for a wide range of applications, including classic and collector cars. Its precision machine-rolled threads minimize the risk of seizing or cross-threading in delicate aluminum heads, making installation smooth and hassle-free. Built to last, this spark plug outperforms conventional plugs by offering twice the lifespan, delivering over 30,000 miles of dependable operation. Crafted with a nickel center electrode tip and featuring a flat seat type, it guarantees consistent ignition and efficient combustion. Each plug is 100 percent pre-fired to ensure reliable functionality right out of the box. With its U-Groove design, this spark plug provides enhanced durability and compatibility, making it a valuable upgrade for maintaining peak engine performance.

Product Features:

OEM specified special ground electrode configuration
Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
Wide range of part numbers for thousands of applications, including classic and collector cars
Lasts twice as long as most conventional plugs
100 percent pre-fired to assure reliable operation
U-Groove Conventional

from

$9.99

Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
Durable construction – 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

from

$6.29

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:

GM regularly updates production and service part designs to integrate new materials and technologies
High-Quality Copper Core: Designed with high-quality copper cores for reliable performance and efficient operation.
Nickel Center Electrode Tip: Features a nickel center electrode tip for enhanced durability and consistent performance.
OE Replacement: These spark plugs are true OE parts, originally installed or validated by General Motors for GM vehicles.
Outstanding Suppression Characteristics: Engineered to deliver outstanding suppression characteristics, ensuring smooth and efficient engine performance.
Versatile Applications: Providing a high-quality replacement for a wide range of vehicles.

from

$10.99

Optimal Performance, Durability, Ignitability. The Autolite Iridium Ultra is an engineered OE replacement iridium spark plug featuring a laser-welded 0.5mm proprietary iridium alloy finewire center electrode that ensures optimal fuel efficiency, acceleration, and focused ignitability. Its nickel-plated shell resists corrosion, while the high-alumina ceramic insulator provides increased strength. Additionally, the proprietary platinum sidewire technology enhances durability and performance, making it a top choice for reliable ignition. It also features a resistor type and a flat seat type for added compatibility and performance.

Product Features:

Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.
A laser-welded 0.5mm proprietary iridium alloy finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.
Nickel-plated shell to resist corrosion.
High-alumina ceramic insulator for increased strength.
Laser welded 0.5mm Iridium finewire center electrode.
Proprietary platinum sidewire technology.

from

$15.99

HIGH IGNITABILITY PROJECTED SQUARE PLATINUM ELECTRODE DESIGN: Combines 0.6 millimeter ruthenium center with a unique cut-back PSPE ground electrode
RUTHENIUM ALLOY CENTER ELECTRODE: NGK’s patented ruthenium technology produces maximum performance, ignitability & durability at high temperatures
PSPE DESIGN: Projected square platinum electrode shape of the ground electrode provides the best ignitability and service life for high heat engines
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: Modern vehicles using OE PSPE type spark plugs or for those seeking an aftermarket plug with the latest OE technology
Enhanced Fuel Burn: Provides a more complete fuel burn, resulting in quicker throttle response, smoother idle, and better cold starts.
Industry-Leading Durability: Ruthenium center electrode ensures exceptional durability and longevity.

from

$10.99

Champion Iridium spark plug is engineered for drivers who demand peak performance and durability. Featuring a fine-wire iridium center electrode and a platinum-enhanced ground electrode, this premium spark plug ensures sharper spark focus and greater ignitability, delivering maximum engine efficiency. The V-trimmed ground electrode design promotes consistent performance, while the Heat-Active alloy allows the electrodes to quickly reach and maintain optimal operating temperatures under all engine loads. Built with a flat seat type and resistor technology, it ensures reliable operation and compatibility with a wide range of vehicles. Designed for performance-grade applications, this spark plug offers exceptional longevity and stable performance, making it the ultimate choice for those seeking to enhance their engine’s power and reliability.

Product Features:

Champion Iridium – Maximum Performance. Premium Spark Plug
Iridium center electrode delivers maximum life
Fine-wire center electrode and V-trimmed for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Maintains stable operating temperature under all engine loads
Heat-Active alloy allows electrodes to reach optimal temperature quickly

from

$5.79

Champion Platinum Power spark plugs are engineered to deliver exceptional performance and durability, making them a reliable choice for maintaining your vehicle’s efficiency. Featuring a platinum center electrode, these spark plugs ensure long-lasting operation while resisting wear and maintaining the proper gap specification throughout their lifespan. The fine-wire center electrode enhances ignitability, while the V-trimmed ground electrode sharpens spark focus for optimal combustion. Constructed with the exclusive Heat-Active alloy, these plugs quickly reach and maintain the ideal operating temperature, ensuring consistent performance under various driving conditions. Designed as a standard replacement, they feature a flat seat type and a nickel-tipped ground electrode for added durability. With a built-in resistor, these spark plugs help reduce electromagnetic interference, making them a dependable choice for smooth engine operation. Upgrade to Champion Platinum Power spark plugs for a perfect balance of power, efficiency, and longevity.

Product Features:

Platinum Power- Premium Spark Plug. Powerful Performance.
Platinum center electrode for long life
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature
Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug

from

$3.49

Copper Plus Spark Plug RC10DMC delivers dependable performance and durability, making it a reliable choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. The nickel-tipped center and ground electrodes provide superior corrosion resistance, ensuring durability even in demanding conditions. Designed to meet ISO and SAE Standards, this spark plug guarantees proven performance and compatibility with standard replacement needs. Its flat seat type and built-in resistor further enhance functionality, making it a practical solution for optimal engine operation. Choose this spark plug for a balance of quality, reliability, and value.

Product Features:

Copper Plus – Dependable Performance.
Copper core center electrode allows for accurate control of heat range for longer life
Patented TinTac and ULTRASEAL coated shell for maximum corrosion resistance
Patented SAC-9 semiconductor resistor for maximum EMI & RFI suppression
Built to ISO and SAE standards for proven performance

Most Sold 1998 Audi A4 Ignition Sensors

Explore our best-selling Audi parts for the 1998 A4 among 2 OEM and aftermarket options starting from $42.99.

show more show less

from

$59.99

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.

from

$42.99

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.

Top-Rated Ignition and Tune-Up Products Brands For Your 1998 Audi A4

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 1998 Audi A4s. Below you’ll find some of our best rated Ignition and Tune-Up Products from NGK, DENSO, and Autolite, and more. Ignition and Tune-Up Products from these brands that fit a 1998 A4 start at just $3.99 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 1998 Audi A4 Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 1998 Audi A4, 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 1998 Audi A4. 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 $10.49, with an average price of just $16.49. Plus, with over 154 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 $10.49

(9)

Standard Nickel Spark Plug (BKUR6ET-10): Reliable OE Performance

“same as oe spark plugs,for less”

from $16.99

(94)

Iridium IX Spark Plug (BKR6EIX): Enhanced Ignitability & Durability

“These plugs woke up lazy truck .”

from $21.99

(51)

Laser Platinum Spark Plug (PFR6Q): High Ignitability & Longevity

“I’ve been using NGK OE Series Laser Platinum Spark Plugs with the fine wire tip design in my car, and the difference in performance is remarkable. The”

Popular DENSO 1998 Audi A4 Ignition and Tune-Up Products

DENSO auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 1998 Audi A4 owner should feel confident when installing genuine DENSO parts in their vehicle. To ensure the best fit and performance for your 1998 A4, Advance Auto Parts carries a full inventory of 3 DENSO Ignition and Tune-Up Products. Plus you will be keeping your Audi in peak condition while saving money because prices on these DENSO Ignition and Tune-Up Products range from $7.99 to $13.99, plus, with more than 209 customer reviews and an impressive 4.6 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.

from $7.99

(1)

U-Groove Spark Plug: OE Performance, K20PBR-S10

“I was lucky to find these OEM Volvo replacement spark plugs locally. The Speed Perk discount was a huge bonus.”

from $12.99

(153)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK20TT

“Long life.”

from $13.99

(55)

Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK20

“👍”

FAQs for 1998 Audi A4 Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 1998 Audi A4s?

Out of 40 Ignition and Tune-Up Products that fit 1998 Audi A4s, the following parts are the top sellers:

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK20TT (10713003) – $12.99
Copper Resistor Spark Plug: Quick Starts & Reliable Performance (5394163) – $3.99
Iridium IX Spark Plug (BKR6EIX): Enhanced Ignitability & Durability (15650090) – $16.99

What’s the price range for 1998 Audi A4 Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 1998 Audi A4 start at $3.49 and go up to $247.99 for the most premium parts.

What’s the average price of a Ignition and Tune-Up Product for a 1998 Audi A4?

The average price for Ignition and Tune-Up Products for the 1998 Audi A4 is $43.94. 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 Audi A4 model years?

Yes, we currently carry Ignition and Tune-Up Products for 23 model years of Audi A4s between 1996 and 2020. Ignition and Tune-Up Products are bought most frequently for the following model years: 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, and 2012.

What are the cheapest Ignition and Tune-Up Products for my 1998 Audi A4?

The cheapest 1998 Audi A4 Ignition and Tune-Up Products we carry in stock are:

Copper Plus Spark Plug (RC10DMC): Dependable Performance & Durability (10095082) – $3.49
Copper Resistor Spark Plug: Quick Starts & Reliable Performance (5394163) – $3.99
Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition (11010036) – $3.99
Platinum Spark Plug: Enhanced Durability & Improved Performance (12013889) – $4.99
Platinum Power Spark Plug (RC12PMC4): Powerful Performance & Durability (15650181) – $5.29

What are the top-rated Ignition and Tune-Up Products that fit the 1998 Audi A4?

Out of 2,983 reviews by customers, our 1998 Audi A4 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 1998 Audi A4 and their top-rated products:

Spark Plugs
- Laser Platinum Spark Plug (PFR6Q): High Ignitability & Longevity (15650092) – $21.99
- Iridium IX Spark Plug (BKR6EIX): Enhanced Ignitability & Durability (15650090) – $16.99
- Standard Nickel Spark Plug (BKUR6ET-10): Reliable OE Performance (19650099) – $10.49

What types of Ignition and Tune-Up Products do you sell for my 1998 Audi A4?

As of 11/2/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 1998 Audi A4:

Can I get help with 1998 Audi A4 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 Audi Ignition and Tune-Up Products and more.

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Advance Auto Parts keeps returns simple. For new Audi A4 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.

1998 Audi A4 Ignition and Tune-Up Products

Carquest Premium – Ignition Switch (Part No.CSA1263)

Dorman – Ignition Lock Cylinder (Part No.924-728)

Carquest Premium – Ignition Switch (Part No.CSA1854)

NGK – Ruthenium HX Spark Plug (LFER7BHX): High Ignitability & Durability (Part No.95125)

Autolite Iridium – Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision (Part No.AI5325)

Autolite – Copper Resistor Spark Plug: Quick Starts & Reliable Performance (Part No.3923)

Dorman – Help – Spark Plug Non-Foulers – 14mm Gasket Seat Long Reach (Part No.42004)

NGK – Premium OE Fit & Design Spark Plug Wire Set: Tinned Copper Core, 6 Leads (Part No.57145)

Carquest Premium – Spark Plug Wire Set: 6 Wires, Increased performance, Designed for direct fit (Part No.35-6035)

Carquest Premium – Coil On Plug Insulator Boot: Spring included, Designed for direct fit (Part No.35-7021)

URO Parts – Ignition Control Module (Part No.4D0905351)

Carquest Premium – Ignition Module (Part No.CBA1223)

Carquest Premium – Ignition Module (Part No.CBE1075)

Carquest Premium – Ignition Control Module (Part No.CBC1386)

NGK – Premium COP Pencil Type Ignition Coil: Meets or Exceeds OE Specifications (Part No.48728)

DENSO – Direct Ignition Coil – Original Equipment Quality (Part No.673-9302)

Carquest Premium – Ignition Coil (Part No.EBC1291)

Delphi – Ignition Coil (Part No.GN10345)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA4323)

Delphi – Knock Sensor (Part No.AS10169)

Carquest Premium – Knock Sensor (Part No.SBC3881)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA4187)

Bosch – Knock Sensor (Part No.0261231146)

Carquest Premium – Multi-Use Connector (Part No.PTA3184)

Carquest Premium – Multi-Use Connector (Part No.PTA1566)

Carquest Premium – Ignition Coil Connector (Part No.HAC1004)

Carquest Premium – Ignition Switch (Part No.CSA1263)

URO Parts – Ignition Switch (Part No.4A0905849B)

Dorman – Ignition Lock Cylinder (Part No.924-728)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1727)

Carquest Premium – Ignition Coil (Part No.EBN1806)

Delphi – Ignition Coil: Meets or Exceeds Original Equipment Design, 1 Piece (Part No.GN10409)

Delphi – Ignition Coil (Part No.GN10326)

Accel – Coil:Cop Audi/Vw (Part No.140274)

Carquest Premium – Multi-Use Connector (Part No.PTA3184)

Carquest Premium – Spark Plug Wire Set: 6 Wires, Increased performance, Designed for direct fit (Part No.35-6035)

Carquest Premium – Coil On Plug Insulator Boot: Spring included, Designed for direct fit (Part No.35-7021)

NGK – Iridium IX Spark Plug (BKR6EIX): Enhanced Ignitability & Durability (Part No.6418)

DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK20 (Part No.5304)

Champion – Double Platinum Power Spark Plug (RC10PLPB4): Enhanced Ignitability & Durability (Part No.7436)

Champion – Platinum Power Spark Plug (RC12PMC4): Powerful Performance & Durability (Part No.3318)

NGK – Laser Platinum Spark Plug (PFR6Q): High Ignitability & Longevity (Part No.6458)

ACDelco – Double Platinum Spark Plug: Long-Lasting Performance & Durability (Part No.41-801)

NGK – Standard Nickel Spark Plug (BKUR6ET-10): Reliable OE Performance (Part No.2397)

DENSO – U-Groove Spark Plug: OE Performance, K20PBR-S10 (Part No.5061)

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK20TT (Part No.4702)

Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP3923)

Autolite – Platinum Spark Plug: Enhanced Durability & Improved Performance (Part No.AP3923)

Autolite – Copper Resistor Spark Plug: Quick Starts & Reliable Performance (Part No.3923)

Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP3923)

ACDelco – RAPIDFIRE Spark Plug: Enhanced Durability & Performance (Part No.5)

DENSO – Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition (Part No.4504)

E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.64)

DENSO – U-Groove Spark Plug: OE Performance, K20TXR (Part No.5063)

Dorman – Help – Spark Plug Non-Foulers – 14mm Gasket Seat Long Reach (Part No.42004)

ACDelco – Copper Core Spark Plug: Reliable Performance & Efficient Operation (Part No.41-602)

Autolite Iridium – Iridium Ultra Fine wire Spark Plug: Optimal Performance & Durability (Part No.AI3923)

NGK – Ruthenium HX Spark Plug (FR6BHX-S): High Ignitability & Durability (Part No.95159)

Champion – Iridium Spark Plug (RC10WMPB4): Maximum Performance & Longevity (Part No.9002)

Champion – Platinum Power Spark Plug (RC12PMCB3): Powerful Performance & Longevity (Part No.3720)

Champion – Copper Plus Spark Plug (RC10DMC): Dependable Performance & Durability (Part No.354)

Carquest Premium – Knock Sensor (Part No.SBC3881)

Carquest Premium – Knock Sensor (Part No.SBC3981)