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Volkswagen Passat B4 TDI

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Volkswagen Passat B4 TDI Engine Fuel Parts

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Radium Split-Flow Flex Fuel Sensor Adapter

ES#5457588 - 20-0589 - Radium Split-Flow Flex Fuel Sensor Adapter - Radium Engineering - Audi BMW Volkswagen Mercedes Benz MINI Porsche

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Radium Engineering - Corporate Logo
ES#:
5457588
Mfg#:
20-0589
In Stock at Vendor
$99.99 USD
Free Shipping
on orders $49 and up

Replacement Fuel Filter Element - Single Open 10 Micron

ES#4883027 - 101-0256 - Replacement Fuel Filter Element - Single Open 10 Micron - Filter for Inline Fuel Filter AN8 Single In/Out unit - Precision Raceworks - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Filter for Inline Fuel Filter AN8 Single In/Out unit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4883027
Mfg#:
101-0256
Ships on Jun 22, 2026
$52.99

This product was last offered at the strikethrough price on
01-22-2026

$49.99 USD
Free Shipping
on orders $49 and up

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 3 Business Days
$23.99 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 Mercedes Benz 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
4714568
Mfg#:
BMS.SA.WMI.NOZ
Ships on Jul 1, 2026
Starting at $40.00 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Relay 167 - Priced Each

ES#2535145 - 191906383C - Relay 167 - Priced Each - Commonly used as a contact close relay for fuel pump - URO - Audi Volkswagen

Commonly used as a contact close relay for fuel pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535145
Mfg#:
191906383C
Ships in 2 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Black Market Parts Universal Fuel Pump Wiring Kit

ES#4883129 - 601-0054 - Black Market Parts Universal Fuel Pump Wiring Kit - A one-stop shop solution for anyone looking to add an additional fuel pump to their fuel tank - Precision Raceworks - Audi BMW Volkswagen Mercedes Benz MINI Porsche

A one-stop shop solution for anyone looking to add an additional fuel pump to their fuel tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4883129
Mfg#:
601-0054
Ships in 6 Business Days
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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 Mercedes Benz MINI Porsche

Adjustable (1-15 PSI) to engage at the appropriate amount of boost pressure for your application. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

Injector Bracket - Priced Each

ES#271081 - 028130206 - Injector Bracket - Priced Each - Recommended to be replaced any time the injector is replaced - Genuine Volkswagen Audi - Volkswagen

Recommended to be replaced any time the injector is replaced affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
271081
Mfg#:
028130206
Special Order: No Guaranteed ETA
10% off MSRP

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

$78.99

This product was last offered at the strikethrough price on
02-26-2026

$70.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

anti-Gel additive - 15oz

ES#2848000 - 71203 - anti-Gel additive - 15oz - For diesels in really cold climates - Redline - Volkswagen

For diesels in really cold climates affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Redline - Corporate Logo
ES#:
2848000
Mfg#:
71203
In Stock
$13.99 USD
Free Shipping
on orders $49 and up

Locking Gas Cap W/Keys

ES#3633709 - 191201551A - Locking Gas Cap W/Keys - Keep your fuel to yourself. - URO - Audi Volkswagen

Keep your fuel to yourself. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3633709
Mfg#:
191201551A
Ships in 2 Business Days
$9.99 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4690254
Mfg#:
601-0261
In Stock
$68.99

This product was last offered at the strikethrough price on
01-22-2026

$64.99 USD
Free Shipping
on orders $49 and up

Fuel Filter Check Valve

ES#294829 - 191127247A - Fuel Filter Check Valve - Located on top of fuel filter, includes sealing o-rings - Genuine Volkswagen Audi - Volkswagen

Located on top of fuel filter, includes sealing o-rings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
294829
Mfg#:
191127247A
Ships in 1-2 days
$85.99

This product was last offered at the strikethrough price on
02-26-2026

$62.99 USD
Free Shipping

Billet 100 Micron Water Methanol Filter

ES#4608740 - SN0-38FIL - Billet 100 Micron Water Methanol Filter - 100 Micron Water-Methanol Filter - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

100 Micron Water-Methanol Filter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4608740
Mfg#:
SN0-38FIL
Special Order: No Guaranteed ETA
$61.99 USD
Free Shipping

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.

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