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Audi C4 S4 Quattro 20v T Engine Fuel Parts

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In-Line Micro Regulator - 6 Bar

ES#4690254 - 601-0261 - In-Line Micro Regulator - 6 Bar - The worlds smallest universal regulator! Comes pre-set within precision tolerance to eliminate guesswork setting target pressure! - Precision Raceworks - Audi BMW Volkswagen

The worlds smallest universal regulator! Comes pre-set within precision tolerance to eliminate guesswork setting target pressure!

Brand:
Precision Raceworks - Corporate Logo
ES#:
4690254
Mfg#:
601-0261
Ships in 9 Business Days
$64.99 USD
Free Shipping
on orders $49 and up

In-Line Micro Regulator - 5 Bar

ES#4690245 - 601-0260 - In-Line Micro Regulator - 5 Bar - The worlds smallest universal regulator! Comes pre-set within precision tolerance to eliminate guesswork setting target pressure! - Precision Raceworks - Audi BMW Volkswagen

The worlds smallest universal regulator! Comes pre-set within precision tolerance to eliminate guesswork setting target pressure!

Brand:
Precision Raceworks - Corporate Logo
ES#:
4690245
Mfg#:
601-0260
Back Ordered
$64.99 USD
Free Shipping
on orders $49 and up

Fuel Injector O-Ring - Priced Each

ES#3660374 - WHT005422B - Fuel Injector O-Ring - Priced Each - Keep your fueling system leak free - Victor Reinz - Audi Volkswagen

Keep your fueling system leak free

Brand:
Victor Reinz - Corporate Logo
ES#:
3660374
Mfg#:
WHT005422B
Ships in 4 Business 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

Mini Screw-Style Clamp For ES5701 - Each

ES#2571771 - 21014bLK - Mini Screw-Style Clamp For ES5701 - Each - 12-14.3mm 9mm Wide - ABA - Audi BMW Volkswagen

12-14.3mm 9mm Wide

Brand:
ABA - Corporate Logo
ES#:
2571771
Mfg#:
21014BLK
Ships in 1-2 days
$13.46 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

4AN "T" Fitting

ES#4212780 - SN0-806-BRD - 4AN "T" Fitting - 4AN T - SnowPerformance - Audi BMW Volkswagen MINI

4AN T

Brand:
SnowPerformance - Corporate Logo
ES#:
4212780
Mfg#:
SN0-806-BRD
In Stock at Vendor
$10.99 USD
Free Shipping
on orders $49 and up

POR15 Absolute Coatings Fuel Tank Sealer

ES#3246046 - POR49216 - POR15 Absolute Coatings Fuel Tank Sealer - POR-15 Fuel Tank Sealer was formulated and developed in our own laboratories due to the demand for a high-tech sealer impervious to all fuels, including the new Stage II fuels which have a high alcohol content. - POR-15 - Audi BMW Volkswagen Mercedes Benz MINI Porsche

POR-15 Fuel Tank Sealer was formulated and developed in our own laboratories due to the demand for a high-tech sealer impervious to all fuels, including the new Stage II fuels which have a high alcohol content.

Brand:
POR-15 - Corporate Logo
ES#:
3246046
Mfg#:
POR49216
Ships in 6 Business Days
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Super Atomizing Water/Methanol Injection Nozzles

ES#4714568 - BMS.SA.WMI.NOZ - Super Atomizing Water/Methanol Injection Nozzles - With CNC machined serviceable/cleanable nozzle inserts for precise fluid metering. Choose single or dual nozzles and match the flow rate to your power needs! - Burger Motorsports - Audi BMW Volkswagen MINI Porsche

With CNC machined serviceable/cleanable nozzle inserts for precise fluid metering. Choose single or dual nozzles and match the flow rate to your power needs!

Brand:
Burger Motorsports - Corporate Logo
ES#:
4714568
Mfg#:
BMS.SA.WMI.NOZ
Ships on Oct 16, 2026
Starting at $40.00 USD
Customize
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

Brand:
Victor Reinz - Corporate Logo
ES#:
248362
Mfg#:
035906149A
Ships in 5 Business Days
$3.99

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

$2.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Nozzle Holder Straight (Rectangle Style)

ES#4642625 - SN0-900 - Nozzle Holder Straight (Rectangle Style) - Stylish nozzle holders for your WMI setup - SnowPerformance - Audi BMW Volkswagen MINI Porsche

Stylish nozzle holders for your WMI setup

Brand:
SnowPerformance - Corporate Logo
ES#:
4642625
Mfg#:
SN0-900
Ships in 1 Business Day
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Injection Hose - 20'

ES#4715254 - BMS-WMI-IL - Water/Methanol Injection Hose - 20' - Replacement WMI Water Injection Hose - Burger Motorsports - Audi BMW Volkswagen MINI

Replacement WMI Water Injection Hose

Brand:
Burger Motorsports - Corporate Logo
ES#:
4715254
Mfg#:
BMS-WMI-IL
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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 MINI Porsche

Snow Performance Hyper-Sonic water-methanol injection nozzle

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

Fuel Filter

ES#3448009 - 893133511 - Fuel Filter - Keep your fuel gunk free - Meyle - Audi Volkswagen

Keep your fuel gunk free 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3448009
Mfg#:
893133511
Ships in 1 Business Day
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter

ES#252228 - 893133511 - Fuel Filter - Keep your fuel gunk free - Bosch - Audi Volkswagen

Keep your fuel gunk free We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
252228
Mfg#:
893133511
Ships in 2 Business Days
$34.99

This product was last offered at the strikethrough price on
07-10-2026

$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter

ES#2891979 - 893133511 - Fuel Filter - Keep your fuel gunk free - Vaico - Audi Volkswagen

Keep your fuel gunk free We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2891979
Mfg#:
893133511
Special Order: No Guaranteed ETA
$20.99 USD
Free Shipping
on orders $49 and up

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.

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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