2003 Audi A4 Ignition and Tune-Up Products
More 2003 Audi A4 Ignition and Tune-Up Products Categories
If you’re looking for an original Ignition and Tune-Up Products replacement for a 2003 Audi A4, you can search through our selection below. You’ll also find aftermarket and OEM Ignition and Tune-Up Products to meet your needs.
Essential 2003 Audi A4 Ignition and Tune-Up Products
Carquest Premium – Knock Sensor (Part No.SBC3897)
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$58.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
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- 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.
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA4187)
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$91.99
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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Bosch – Knock Sensor (Part No.0261231038)
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$45.49
Bosch OE quality knock sensors for optimum engine protection and fuel consumption reduction up to 9%
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- 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
Dorman – Ignition Lock Cylinder (Part No.924-728)
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$224.99
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.
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- 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
Carquest Premium – Ignition Switch (Part No.CSA1263)
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$55.99
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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Vemo – Ignition Switch (Part No.M505063421VMO)
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$24.53
Choosing from the comprehensive VIEROL product range means opting for outstanding quality. This is confirmed by the Q+ quality seal for parts in OEM quality MADE IN GERMANY. VIEROL AG is a leading automotive parts distributor located in Oldenburg, Germany. With the trademarks VAICO and VEMO are the service market leaders in more than 125 countries worldwide. As an internationally present automotive supplier, VIEROL AG specializes in electronic and electrical components for German and European vehicles. VIEROL AG quality brands VEMO and VAICO combine innovation and experience, technical expertise and practiced corporate values, commitment to precision and a passion for technology: the invisible, but unquestionable, optimal prerequisites for guaranteed product quality and globally recognized service. Choosing from the comprehensive VIEROL product range means opting for outstanding quality. 8 Male Pin Electrical Connectors. Black Housing
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Carquest Premium – Ignition Coil Connector (Part No.HAC1004)
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$31.49
WVE is a leading source of advanced vehicle electronics components for replacement applications in the automotive aftermarket and original equipment applications. WVE offers high-technology manufacturing along with innovative solutions and improvements to
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Carquest Premium – Ignition Coil Connector (Part No.PTA3184)
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$60.99
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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Carquest Premium – Ignition Coil Connector (Part No.PTA1566)
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$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.
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- 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
WSO – Crank Position Senso (Part No.A225587574WSO)
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$44.71
Crank Position Senso
Bosch – Crankshaft Position Sensor (Part No.A2255388731BOS)
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$78.97
Bosch Crankshaft Position Sensors provide Accurate Detection of the engine speed: the engine speed is the main control variable for the ignition timing.
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- Precise digital measurement of rotational speeds
- OE-technology quality components Developed and manufactured to very fine tolerances
- High resistance against external interference
Bosch – Bosch Hall Sender (Part No.F206061781BOS)
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$103.99
All Bosch hall senders provide very reliable and accurate measurements and have extremely fast response times to ensure your vehicle runs as intended.
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- Built-in circuit protection to ensure your electronics and computer systems stay unharmed
- Sturdy design, vibration resistant and thermal stability
Suncore – Gas Shock (Part No.12S257030)
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$39.99
Gas Shock
DENSO – Original Equipment Quality Direct Ignition Coil (Part No.673-9303)
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$44.49
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.
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- First Time Fit
- Built to DENSO Original Equipment Standards
Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1791)
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$29.99
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.
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- 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.
DENSO – Original Equipment Quality Direct Ignition Coil (Part No.673-9302)
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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.
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Product Features:
- First Time Fit
- Built to DENSO Original Equipment Standards
Tech Smart – Ignition Coil Wiring Harness Repair Kit (Part No.H11001)
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$31.05
Qualities that have made SMP an industry leader for more than 95 years, innovation, engineering expertise, superior quality, meticulous testing, unmatched customer service, competitive pricing, and brand integrity, are at the heart of every TechSmart part.
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- Allows you to repair only the cracked or worn part of the ignition coil wiring instead of the entire harness
- Direct-fit replacement part ensures ease of installation
- Quality-engineered replacement part properly restores vehicle drivability and ignition coil function
- All TechSmart® parts meet or exceed OE performance, providing today’s technician with the quality parts needed to get the job done right, the first time
Carquest – Cornering Light Socket (Part No.PT189)
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$23.29
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.
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- Our control modules feature double wire bonds for better connections, greater dependability and longer life despite being subjected to intense vibration and the tough operating environment
- Copper slug heat sinks provide better heat dissipation to prevent heat from damaging the module
- Our ignition modules will respond to a weak signal from the crankshaft position sensor and begin energizing the coils immediately for better starts in cold weather
- High-temperature polymer housing reducing moisture intrusion and minimizes vibration damage for extended life and improved reliability
- Our ignition modules are durability tested for 500 thermal cycles ranging from -40C to +125C
NGK – OE Series Laser Platinum Spark Plug: Fine Wire Tip Design, PFR6Q (Part No.6458)
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$16.99
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.
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- 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
NGK – OE Series Standard Nickel Spark Plug: Semi-Surface Discharge Tip Design, BKR6EKUB (Part No.7969)
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$9.99
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.
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- 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
- Triple Gasket Sealing: Prevents combustion gas leakage, ensuring efficient engine performance.
DENSO – U-Groove Spark Plug: OE Performance, lasts 30K+ Miles, K20TXR (Part No.5063)
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$5.79
OEM specified special ground electrode configuration.
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- 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% pre-fired to assure reliable operation
- U-Groove Conventional
Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP5325)
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$6.79
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.
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- Works to optimize engine performance for a longer life and improved fuel economy
- OE design
- Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
- Platinum ball welding process provides a consistent point of contact for enhanced adhesion
Champion – Iridium Spark Plug: Maximum Performance, OE Replacement, KC8WYPB4 (Part No.9805)
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$8.49
Champion Iridium – the ultimate element. This spark plug’s fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance.
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- V-trimmed ground electrode promotes sharper spark focus
NGK – Ruthenium HX High Ignitability Spark Plug: PSPE Tip Design, FR7BHX-S (Part No.92400)
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$14.99
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.
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- 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.
Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RC10DMC (Part No.354)
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$3.49
Dependable performance. This Champion spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.
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- 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
Champion – Iridium Spark Plug: Maximum Performance, OE Replacement, RC10WMPB4 (Part No.9002)
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$9.99
Champion® Iridium – the ultimate element. This spark plug’s fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance.
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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
NGK – OE Series Laser Iridium Spark Plug: Fine Wire Tip Design, IFR6D10 (Part No.5344)
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$18.99
NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.
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Product Features:
- ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
- IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
- PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
- RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs
Autolite Iridium – Iridium Ultra Finewire Spark Plug: Optimal Performance, Durability, Ignitability (Part No.AI5325)
from
$10.99
Autolite Iridium Ultra Laser Finewire 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.
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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.
Popular 2003 Audi A4 Ignition and Tune-Up Products Categories
2003 Audi A4 Ignition and Tune-Up Products
You count on your 2003 Audi A4 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 58 Ignition and Tune-Up Products ranging in price from $2.99 to $224.99, you’re sure to find everything you need for your 2003 Audi A4.
Brands matter. If you want to shop a specific Ignition and Tune-Up Products brand, we stock 17 different brands like Autolite, NGK, and DENSO. 2003 Audi A4 Ignition and Tune-Up Products start as low as $2.99!
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 4,198 extensive product reviews on 2003 Audi A4 Ignition and Tune-Up Products. Some of the top-rated Ignition and Tune-Up Products products we carry are Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition with 4.6 stars and Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK20 with 4.8 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 Audi A4 below to get started!
Top-Rated Ignition and Tune-Up Products Brands For Your 2003 Audi A4
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 Audi A4 running right for years to come. In our inventory you’ll find brands like Autolite, NGK, DENSO, and even more.
Popular NGK Ignition and Tune-Up Products
You’ll find popular NGK brand products across Spark Plugs. All are waiting to get your 2003 Audi A4 back on the road. Some of the top-rated NGK products in these categories are:
Top-Rated NGK Ignition and Tune-Up Products
If NGK are what you’re looking for, our inventory holds plenty. We stock NGK brand Ignition and Tune-Up Products for your 2003 Audi A4, and some of our most reviewed NGK parts include:
FAQs for 2003 Audi A4 Ignition and Tune-Up Products
What are the most purchased Ignition and Tune-Up Products for the 2003 Audi A4?
Out of 58 Ignition and Tune-Up Products for the 2003 Audi A4, the most popular in our inventory are:
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$10.99
(153)
Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IK20TT
Spark Plugs
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$9.99
(141)
Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition
Spark Plugs
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$4.79
(149)
Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration
Spark Plugs
What are the top-rated 2003 Audi A4 Ignition and Tune-Up Products?
Top-rated Ignition and Tune-Up Products for your 2003 Audi A4 based on customer reviews/ratings are:
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$3.99
(105)
Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition
“Very nice quality. Installed like factory. Ran great.”
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$6.79
(55)
Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life
“Nice plugs”
