2003 Audi A3 Fuel System Parts
Select Your Submodel
- USMW Professional Series®Electric Fuel PumpAudi A3 2003, Electric Fuel Pump by USMW Professional Series®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$65.49
- DeatschWerks®DW65V™ Electric In-Tank Fuel Pump with 9-1025 Install KitAudi A3 1.8L 2003, DW65V™ Electric In-Tank Fuel Pump by DeatschWerks®. With 9-1025 Install Kit. Pump Type: speciality. Make your vehicle faster and more powerful with premium-quality performance fuel system parts stocked on our...$249.00
- Injector Dynamics®ID1700x Fuel InjectorAudi A3 2003, ID1700x Fuel Injector by Injector Dynamics®. The ID1700x is the most recent offering from the partnership of Injector Dynamics and Bosch Motorsport. The ID1700x was designed to fill the gap between the ID1300x and the...Top-grade fuel system upgrade that will take your driving to the next levelDesigned to help you maximize your vehicle’s fuel system efficiency$1,239.00
- Injector Dynamics®ID2600-XDS Fuel InjectorsAudi A3 2003, ID2600-XDS Fuel Injectors by Injector Dynamics®. The ID2600-XDS is the most recent offering from the partnership of Injector Dynamics and Bosch Motorsport. The ID2600-XDS was developed specifically for use with liquid...High quality at an affordable priceExpertly made from premium materials$1,470.00
- MotoRad®Fuel Tank CapAudi A3 2003, Fuel Tank Cap by MotoRad®. Vented. MotoRad fuel caps are designed and manufactured to prevent fuel loss, primarily through evaporation. A faulty or leaky fuel cap emit up-to 30 gallons of fuel per year in to the...Prevents leakingPrevent fuel loss through evaporation$4.16 - $14.12
- WIX®Complete In-Line Fuel FilterAudi A3 Mexico Built 2003, Complete In-Line Fuel Filter by WIX®. The fuel filter is often the forgotten filter. Yet the fuel put into diesel and off-road equipment, more often than not, contains contaminants such as dirt, rust, scale...Provides highly efficient and unmatched fuel cleansing performanceProtects advanced fuel injection systems from contaminants$17.97
- ACDelco®GM Original Equipment™ Fuel FilterAudi A3 2003, GM Original Equipment™ Fuel Filter by ACDelco®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$20.04
- Premium Guard®Fuel FilterAudi A3 2003, Fuel Filter by Premium Guard®. Fuel filters are precisely designed and engineered to meet OEM requirements and fitment. Delivering high efficiency filtration, filters meet modern engine demands for maximum fuel flow. Bring...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$6.62 - $8.40
- Pentius®UltraFLOW™ Fuel FilterAudi A3 Mexico Built 2003, UltraFLOW™ Fuel Filter by Pentius®. The UltraFLOW Fuel Filters by Pentius are designed to trap the dirt, rust and other contaminates that can otherwise cause engine hesitation, loss of power, hard starting,...Designed to eliminate contaminantsEnsures proper fitment and excellent performance$5.13 - $5.85
- Luber-finer®Fuel FilterAudi A3 Mexico Built 2003, Fuel Filter by Luber-finer®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Extended Line of cartridge and spin-on filtersWide Selection Of Filters Providing Broad Coverage$8.06
- Lucas Oil®Fuel TreatmentUniversal Fuel Treatment by Lucas Oil®. Quantity: 1 Piece. A powerful blend of oils and additives that contain no SOLVENTS. Designed to increase power and fuel mileage and also lower exhaust emissions through a more complete combustion.A great tune-up in a bottleCleans and lubricates the fuel system$5.49 - $30.99
- Lucas Oil® 10003Fuel TreatmentUniversal Fuel Treatment (10003) by Lucas Oil®. Volume: 1 qt (32 oz). Quantity: 1 Piece. A powerful blend of oils and additives that contain no SOLVENTS. Designed to increase power and fuel mileage and also lower exhaust emissions...A great tune-up in a bottleCleans and lubricates the fuel system$12.99
- Lucas Oil® 10013Fuel TreatmentUniversal Fuel Treatment (10013) by Lucas Oil®. Volume: 1 gal (128 oz). Quantity: 1 Piece. A powerful blend of oils and additives that contain no SOLVENTS. Designed to increase power and fuel mileage and also lower exhaust emissions...A great tune-up in a bottleCleans and lubricates the fuel system$30.99
- Lucas Oil® 10020Fuel TreatmentUniversal Fuel Treatment (10020) by Lucas Oil®. Volume: 5.25 oz. Quantity: 1 Piece. A powerful blend of oils and additives that contain no SOLVENTS. Designed to increase power and fuel mileage and also lower exhaust emissions through a...A great tune-up in a bottleCleans and lubricates the fuel system$5.49
- Davico®2 Step Induction Kit2 Step Induction Kit by Davico®. A specially designed kit for Davico Manufacturing including the “Sledgehammer” Fuel System Ultra Treatment and the “Sledgehammer” RID Rapid Induction Deposit cleaner. This LOW VOC Compliant...Helps to keep Catalytic Converters free of carbon and sootMaintains Catalytic Converters efficiency$30.52
- Lucas Oil®Octane BoosterUniversal Octane Booster by Lucas Oil®. Quantity: 1 Piece. Lucas Octane Booster - A Real Octane Booster! Tested and proven to deliver three times more boost than most other brands. Lucas Octane Booster is a GENUINE Performance Enhancer!...Safe for turbos, oxygen sensors and catalytic convertersSuitable for use in fuel injected and carbureted engines$2.49 - $8.51
- Lucas Oil®Safeguard™ Ethanol Fuel Conditioner with StabilizersUniversal Safeguard™ Ethanol Fuel Conditioner with Stabilizers by Lucas Oil®. Quantity: 1 Piece. Lucas Safeguard™ Ethanol Fuel Conditioner with Stabilizers was developed to specifically address issues associated with using ethanol...Cleans injectors, valve seats, combustion chambers and other critical fuel componentsStabilizes fuel and prevents varnish & gum formation in ethanol and gasoline$2.96 - $10.49
- Royal Purple®Max Atomizer™ Synthetic 6 oz Fuel Injector Cleaner BottleUniversal Max Atomizer™ Synthetic 6 oz Fuel Injector Cleaner Bottle by Royal Purple®. 1 Piece. 6 oz. Royal Purple's Max-Atomizer is a fully-synthetic, highly concentrated, high performance fuel injector cleaner. It is specially...Restores fuel economyStabilizes ethanol$5.19
- Royal Purple®Max-Clean™ Fuel System Cleaner & StabilizerUniversal Max-Clean™ Fuel System Cleaner & Stabilizer by Royal Purple®. 20 oz. Royal Purple's Max-Clean is a state-of-the-art synthetic fuel system cleaner and fuel injector cleaner that deeply penetrates and cleans injectors,...Improve fuel economy an average of 3.2 percentRestore horsepower an average of 2.6 percent$11.99 - $71.77
- 104®Octane Boost 16 ozUniversal Octane Boost by 104®. 16 oz. Add entire contents of bottle to gas tank and fill with fuel. One bottle treats up to 25 gallons. This product is distinguished by total quality assurance, unsurpassed by anybody else.Boosts Power!Get Better Gas Mileage$9.99
- Motorcraft®Cetane BoosterCetane Booster by Motorcraft®. Motorcraft is the way to restore the performance of your vehicle. Designed specifically for your vehicle, Motorcraft products meet stringent Ford Motor Company standards and feature OEM quality without the...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$4.99
- Motorcraft®Cetane Booster and Performance ImproverCetane Booster and Performance Improver by Motorcraft®. Motorcraft is the way to restore the performance of your vehicle. Designed specifically for your vehicle, Motorcraft products meet stringent Ford Motor Company standards and...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$7.60 - $41.62
- Motorcraft®Diesel Anti-Gel and Performance ImproverDiesel Anti-Gel and Performance Improver by Motorcraft®. Motorcraft is the way to restore the performance of your vehicle. Designed specifically for your vehicle, Motorcraft products meet stringent Ford Motor Company standards and...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$4.38 - $34.48
- Lucas Oil®Complete Fuel System Renewal KitUniversal Complete Fuel System Renewal Kit by Lucas Oil®. The Lucas Complete Fuel System Renewal Kit is your all-in-one system maintenance solution! Just follow the 4 easy steps to eliminate gum, varnish, particulate matter and...A great tune-up in a bottleCleans and lubricates the fuel system$19.90
- Royal Purple®Max-Boost™ 16 oz Octane Booster & Fuel System Stabilizer BottleUniversal Max-Boost™ 16 oz Octane Booster & Fuel System Stabilizer Bottle by Royal Purple®. 1 Piece. 16 oz. Royal Purple's new Max-Boost is a high performance octane booster and fuel treatment for racing applications that increases...Reduces engine knocking and pingingRaises octane rating up to 30 points or 3 numbers$9.35
- Royal Purple®Max-Tane™ Diesel Fuel Injection 20 oz Cleaner & Cetane Booster CanMax-Tane™ Diesel Fuel Injection 20 oz Cleaner & Cetane Booster Can by Royal Purple®. Diesel engines are valued for fuel efficiency and longevity. Extend the miles you can drive and years of service on your diesel engine with Royal...Increases cetane number by up to 8Increases fuel economy by up to 10%$10.39
- AllStar Performance®16 oz Alcohol Upper LubeUniversal 16 oz. Alcohol Upper Lube by AllStar Performance®. Upper Lube is a high temperature cylinder lube that protects and extends engine life. Added directly to the fuel, Upper Lube reduces fuel wash down, chalky residue and...Precise manufacturing and high-grade materialsExceptional performance at a competitive price$14.99
- Bar's Leaks®Rislone 16.9 Oz Gas Fuel System TreatmentUniversal Rislone 16.9 Oz Gas Fuel System Treatment by Bar's Leaks®. Most car owners aren't expert mechanics. When they notice a puddle underneath their vehicles, or when they turn the steering wheel and hear the telltale whine that...Precisely engineered to ensure ultimate efficiencyProudly made in the USA$11.86
- Bar's Leaks®Rislone 16.9 Oz Yellow Diesel Fuel System TreatmentUniversal Rislone 16.9 Oz Yellow Diesel Fuel System Treatment by Bar's Leaks®. Most car owners aren't expert mechanics. When they notice a puddle underneath their vehicles, or when they turn the steering wheel and hear the telltale...Precisely engineered to ensure ultimate efficiencyProudly made in the USA$11.86
- Bar's Leaks®Rislone 6 Oz UCL Fuel Injector CleanerUniversal Rislone 6 Oz UCL Fuel Injector Cleaner by Bar's Leaks®. Most car owners aren't expert mechanics. When they notice a puddle underneath their vehicles, or when they turn the steering wheel and hear the telltale whine that...Precisely engineered to ensure ultimate efficiencyProudly made in the USA$3.94
Shop By Service Type
Popular Products
- $97.57 - $102.57
- $64.70 - $72.71
2003 Audi A3 Models
Popular Searches