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Audi B6 S4 V8

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Audi B6 S4 V8 Engine Parts & Accessories

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Expansion Tank Cap

ES#253082 - 3B0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi Volkswagen

Keep proper pressure in your coolant system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
253082
Mfg#:
3B0121321
In Stock
25% off MSRP

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

$39.59

This product was last offered at the strikethrough price on
01-08-2026

$29.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sport & Sound Cat-Back Exhaust System - Resonated

ES#3514254 - 764440 - Sport & Sound Cat-Back Exhaust System - Resonated - Stainless steel resonated cat-back exhaust system with dual round, polished tips - Supersprint - Audi

Stainless steel resonated cat-back exhaust system with dual round, polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3514254
Mfg#:
764440
In Stock
Limited Qty Sale
$3055.99

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

$2734.99 USD
Free Shipping

Camshaft Adjuster Unit - Priced Each

ES#284546 - 079109087N - Camshaft Adjuster Unit - Priced Each - Fits left and right side - Genuine Volkswagen Audi - Audi

Fits left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284546
Mfg#:
079109087N
Ships in 6 Business Days
5% off MSRP

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

$1427.99

This product was last offered at the strikethrough price on
07-01-2026

$1354.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Main Radiator

ES#4659528 - 8E0121251AB - Main Radiator - Main replacement radiator - Nissens - Audi

Main replacement radiator We Price Match - Give Us A Call or Chat! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Nissens - Corporate Logo
ES#:
4659528
Mfg#:
8E0121251AB
In Stock
Limited Qty Sale
$361.41

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

$325.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Cylinder Head Gasket Kit

ES#3469551 - 079103383BAKT - Complete Cylinder Head Gasket Kit - Consists of necessary one-time-use components when servicing cylinder heads - Assembled By ECS - Audi

Consists of necessary one-time-use components when servicing cylinder heads affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3469551
Mfg#:
079103383BAKT
In Stock
ON SALE!
$351.99

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

$323.82 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injectors - Set Of Eight

ES#3677370 - 079133551bKT - Fuel Injectors - Set Of Eight - Keep your engine running smooth - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3677370
Mfg#:
079133551BKT
In Stock
$2539.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

4.2 Performance Ignition Service Kit

ES#5338616 - 056059LA078ISKT - 4.2 Performance Ignition Service Kit - Featuring ECS Performance Ignition Coils & OEM Bosch spark plugs for increased spark energy! - ECS - Audi

Featuring ECS Performance Ignition Coils & OEM Bosch spark plugs for increased spark energy! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5338616
Mfg#:
056059LA078ISKT
Ships on Aug 19, 2026
Auto Notify
ON SALE! SAVE 25%
$400.99

This product was last offered at the strikethrough price on
06-13-2026

$300.62 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Ignition Coil - Priced Each

ES#4846107 - 056059LA07 - ECS Performance Ignition Coil - Priced Each - Increased energy output over OE coils for a stronger, more consistent spark! - ECS - Audi Volkswagen

Increased energy output over OE coils for a stronger, more consistent spark! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4846107
Mfg#:
056059LA07
Ships on Aug 19, 2026
Auto Notify
ON SALE! SAVE 20%
$35.99

This product was last offered at the strikethrough price on
06-13-2026

$28.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Sprocket Washer - Priced Each

ES#284642 - 079109497 - Camshaft Sprocket Washer - Priced Each - 36x12.5x8.5 - Genuine Volkswagen Audi - Audi

36x12.5x8.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284642
Mfg#:
079109497
In Stock
5% off MSRP

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

$58.38

This product was last offered at the strikethrough price on
07-01-2026

$55.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Charcoal Canister

ES#436511 - 8E0201801L - Charcoal Canister - Keep your fuel system efficient - Genuine Volkswagen Audi - Audi

Keep your fuel system efficient affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
436511
Mfg#:
8E0201801L
Ships in 5 Business Days
5% off MSRP

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

$809.99

This product was last offered at the strikethrough price on
07-01-2026

$768.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS 4.2 Performance Ignition Coil - Set Of Eight

ES#5338615 - 056059la07-8KT - ECS 4.2 Performance Ignition Coil - Set Of Eight - Increased energy output over OE coils for a stronger, more consistent spark! - ECS - Audi

Increased energy output over OE coils for a stronger, more consistent spark! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5338615
Mfg#:
056059LA07-8KT
Ships on Aug 19, 2026
Auto Notify
ON SALE! SAVE 20%
$287.99

This product was last offered at the strikethrough price on
06-13-2026

$230.34 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM Oil Cooler and Auxiliary Radiator Delete Kit

ES#4045944 - B67OCARDK - JHM Oil Cooler and Auxiliary Radiator Delete Kit - The solution for this issue that deletes the auxiliary radiator while also improving oil cooling and oil capacity. - JH Motorsports - Audi

The solution for this issue that deletes the auxiliary radiator while also improving oil cooling and oil capacity. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4045944
Mfg#:
B67OCARDK
Ships in 10 Business Days
$1149.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner

ES#4872237 - 079903133R - Accessory Belt Tensioner - Keep your drive belt tight to your accessories. - URO - Audi

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

Brand:
URO - Corporate Logo
ES#:
4872237
Mfg#:
079903133R
In Stock
$227.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#1831805 - 077905115T - Ignition Coil - Priced Each - Keep your engine running smooth - Bremi - Audi Volkswagen

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Bremi - Corporate Logo
ES#:
1831805
Mfg#:
077905115T
In Stock
$26.65

This product was last offered at the strikethrough price on
04-09-2026

$24.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter

ES#2816332 - 8E0201511J - Fuel Filter - With pressure regulator - Hamburg Tech - Audi

With pressure regulator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Up to VIN 8E-5-065000, split is in the 2005 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816332
Mfg#:
8E0201511J
In Stock
$45.99 USD
Free Shipping
on orders $49 and up

Billet Engine Oil Dipstick - Black anodized

ES#2960431 - 009352ECS01-02 - Billet Engine Oil Dipstick - Black anodized - A more durable and aesthetically pleasing addition to your engine bay - ECS - Audi

A more durable and aesthetically pleasing addition to your engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2960431
Mfg#:
009352ECS01-02
In Stock
ON SALE! SAVE 25%
$103.99

This product was last offered at the strikethrough price on
06-13-2026

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

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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