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Audi A4 Engine Fuel Parts

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Union Nut

ES#331120 - 321201375A - Union Nut - Secures the fuel pump assembly down to the fuel tank - Genuine Volkswagen Audi - Audi Volkswagen

Secures the fuel pump assembly down to the fuel tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
331120
Mfg#:
321201375A
In Stock
ON SALE!
$12.99

This product was last offered at the strikethrough price on
06-15-2026

$12.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Injector Adapter Hat - Short To Tall Set Of 6

ES#4029660 - 034-106-3022-6 - Injector Adapter Hat - Short To Tall Set Of 6 - Includes injector o-ring seals. - 034Motorsport - Audi

Includes injector o-ring seals. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles that use later style TT injectors for AEB applications.

Brand:
034Motorsport - Corporate Logo
ES#:
4029660
Mfg#:
034-106-3022-6
Ships in 2 Business Days
$96.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Motorvac Direct Injection Induction System Cleaner

ES#3245877 - MVC4002425 - Motorvac Direct Injection Induction System Cleaner - Great for use with the ES3245872 MotorVac cleaner tool. Used to blast carbon out of intake and valves. - MotorVac - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Great for use with the ES3245872 MotorVac cleaner tool. Used to blast carbon out of intake and valves. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MotorVac
ES#:
3245877
Mfg#:
MVC4002425
Ships in 6 Business Days
$47.99 USD
Free Shipping
on orders $49 and up

Gas Cap

ES#5341359 - 8K0201550P - Gas Cap - Includes seal ring and retaining strap - URO - Audi

Includes seal ring and retaining strap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
5341359
Mfg#:
8K0201550P
Ships in 1 Business Day
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Flow Water-Methanol Check Valve - 4AN Fittings

ES#4368638 - SN0-8CV-BRD - High Flow Water-Methanol Check Valve - 4AN Fittings - Added protection for your WMI setup - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Added protection for your WMI setup affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4368638
Mfg#:
SN0-8CV-BRD
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up

Water/Methanol Nozzle - 2.5GPH

ES#4476204 - SN0-N0250 - Water/Methanol Nozzle - 2.5GPH - Snow Performance Hyper-Sonic water-methanol injection nozzle - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Snow Performance Hyper-Sonic water-methanol injection nozzle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4476204
Mfg#:
SN0-N0250
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Race German Inline Fuel Pressure Adapter (1/8npt)

ES#4507179 - RGIFPA - Race German Inline Fuel Pressure Adapter (1/8npt) - Safely perform diagnosis or add gauges to your fuel system! - Race German - Audi BMW Volkswagen MINI

Safely perform diagnosis or add gauges to your fuel system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race German - Corporate Logo
ES#:
4507179
Mfg#:
RGIFPA
Ships in 1 Business Day
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector O-Ring - Priced Each

ES#248362 - 035906149a - Fuel Injector O-Ring - Priced Each - Keep your injector from leaking. 7.52x3.53 - Victor Reinz - Audi Volkswagen

Keep your injector from leaking. 7.52x3.53 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
248362
Mfg#:
035906149A
Ships in 1-2 days
$3.99

This product was last offered at the strikethrough price on
05-07-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Relay - 372

ES#2899179 - 4D0951253 - Fuel Pump Relay - 372 - Keep the fuel pump going - Vemo - Audi Volkswagen

Keep the fuel pump going affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2899179
Mfg#:
4D0951253
Special Order: No Guaranteed ETA
$91.99 USD
Free Shipping
on orders $49 and up

FP34 Surge Tank Hardware Kit - Nipple Connections

ES#3419781 - 034-106-Z024 - FP34 Surge Tank Hardware Kit - Nipple Connections - Allows for connections to factory style nipple connections for 5/16" or 8mm hose - 034Motorsport - Audi Volkswagen

Allows for connections to factory style nipple connections for 5/16" or 8mm hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3419781
Mfg#:
034-106-Z024
Ships in 2 Business Days
$91.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Installation Kit

ES#5434404 - 06j998907dkt1KT2 - Fuel Injector Installation Kit - A simple kit including genuine parts to service all four injectors! - Genuine Volkswagen Audi - Audi Volkswagen Porsche

A simple kit including genuine parts to service all four injectors! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5434404
Mfg#:
06J998907DKT1KT2
In Stock
$90.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector O-Ring Kit

ES#2576121 - 035906149AKT5 - Fuel Injector O-Ring Kit - Keep you Injector system working perfectly with fuel injector O-Ring kit. - Genuine Volkswagen Audi - Audi

Keep you Injector system working perfectly with fuel injector O-Ring kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2576121
Mfg#:
035906149AKT5
Ships in 1-2 days
$86.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter

ES#436475 - 8E0201511L - Fuel Filter - Has internal fuel pressure regulator. - Genuine Volkswagen Audi - Audi

Has internal fuel pressure regulator. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2004 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
436475
Mfg#:
8E0201511L
Ships in 3 Business Days
9% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$90.99

This product was last offered at the strikethrough price on
06-20-2026

$82.99 USD
Free Shipping

Fuel Pump Relay - 372

Keep the fuel pump going affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SMP - Corporate Logo
ES#:
4877157
Mfg#:
4D0951253
In Stock at Vendor
$82.99

This product was last offered at the strikethrough price on
02-04-2026

$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Installation Kit

ES#2586592 - 06B133555HKT1 - Fuel Injector Installation Kit - Includes everything required to replace the fuel injectors - Assembled By ECS - Audi

Includes everything required to replace the fuel injectors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Engine code AWM

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586592
Mfg#:
06B133555HKT1
Ships on Oct 1, 2026
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ON SALE! SAVE 10%
$87.99

This product was last offered at the strikethrough price on
05-02-2026

$79.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Fuel Parts

ECS Tuning has made it simple to find the perfect fuel system parts for your car. Whether you're replacing OEM fuel system parts or building a high-flow fuel system for a performance car, ECS Tuning has fuel pumps, fuel injectors, fuel filters, and more from respected names like Bosch, Siemens, and Genesis.

Let us help you find the parts that fit your Audi

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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