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Audi D4 A8 4.2

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Audi D4 A8 4.2 Engine Fuel Parts

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Boost Switch

ES#2826277 - 81014 - Boost Switch - Adjustable (1-15 PSI) to engage at the appropriate amount of boost pressure for your application. - SnowPerformance - Audi BMW Volkswagen MINI Porsche

Adjustable (1-15 PSI) to engage at the appropriate amount of boost pressure for your application.

Brand:
SnowPerformance - Corporate Logo
ES#:
2826277
Mfg#:
81014
In Stock at Vendor
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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-Tank Fuel Pump Gasket

Located between the retaining ring and fuel tank

Brand:
Spectra Premium - Corporate Logo
ES#:
4145075
Mfg#:
1J0919133B
In Stock at Vendor
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Pressure Fuel Sensor

ES#2894919 - 06J906051D - High Pressure Fuel Sensor - Located on the fuel rail - Vemo - Audi Volkswagen

Located on the fuel rail

Brand:
Vemo - Corporate Logo
ES#:
2894919
Mfg#:
06J906051D
Special Order: No Guaranteed ETA
$48.99 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

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 Aug 31, 2026
Starting at $40.00 USD
Customize
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

High Pressure Fuel Pump O-Ring

ES#4145073 - WHT005184 - High Pressure Fuel Pump O-Ring - Seals the high pressure fuel pump to the cylinder head - SMP - Audi Volkswagen

Seals the high pressure fuel pump to the cylinder head

Brand:
SMP - Corporate Logo
ES#:
4145073
Mfg#:
WHT005184
Ships in 1 Business Day
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

In-Tank Fuel Pump Gasket

ES#4066603 - 1J0919133B - In-Tank Fuel Pump Gasket - Located between the retaining ring and fuel tank - Hamburg Tech - Audi Volkswagen Porsche

Located between the retaining ring and fuel tank We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4066603
Mfg#:
1J0919133B
Ships in 1 Business Day
$7.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

WMI Inline Filter

ES#4715238 - BMS-WMI-FIL - WMI Inline Filter - Keep your WMI system in top condition by filtering out potential contaminants before it becomes a problem - Burger Motorsports - Audi BMW Volkswagen MINI

Keep your WMI system in top condition by filtering out potential contaminants before it becomes a problem

Brand:
Burger Motorsports - Corporate Logo
ES#:
4715238
Mfg#:
BMS-WMI-FIL
Ships on Aug 18, 2026
$15.00 USD
Free Shipping
on orders $49 and up

Amber LED

Brand:
SnowPerformance - Corporate Logo
ES#:
2826274
Mfg#:
80001
In Stock at Vendor
$6.99 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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