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Audi A4 Engine Parts & Accessories

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MACH Force-Xp Stainless Steel Axle-Back Exhaust System

ES#4220053 - 49-36419-C - MACH Force-Xp Stainless Steel Axle-Back Exhaust System - Resonated 3" to 2-1/2" 304 Stainless Steel with carbon fiber tips - AFE - Audi

Resonated 3" to 2-1/2" 304 Stainless Steel with carbon fiber tips

Brand:
AFE - Corporate Logo
ES#:
4220053
Mfg#:
49-36419-C
Back Ordered
20% off MSRP

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

$1441.99

This product was last offered at the strikethrough price on
02-21-2026

$1153.00 USD

MACH Force-Xp 304 Stainless Steel Cat-Back Exhaust System

ES#4220056 - 49-36420-B - MACH Force-Xp 304 Stainless Steel Cat-Back Exhaust System - Resonated 3" to 2-1/2" with 4" black tips - AFE - Audi

Resonated 3" to 2-1/2" with 4" black tips

Brand:
AFE - Corporate Logo
ES#:
4220056
Mfg#:
49-36420-B
Back Ordered
20% off MSRP

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

$2105.00

This product was last offered at the strikethrough price on
05-27-2026

$1684.00 USD

Oil Cooler Replacement Kit - Stage 2

ES#2973037 - 068117021BKT2 - Oil Cooler Replacement Kit - Stage 2 - Includes the necessary components to replace your oil cooler and perform an engine oil service - Assembled By ECS - Audi

Includes the necessary components to replace your oil cooler and perform an engine oil service 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8D-X-199999, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2973037
Mfg#:
068117021BKT2
Back Ordered
ON SALE!
$185.99

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

$177.51 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Radiator Installation Kit

ES#2586571 - 8E0121251A2KT - Radiator Installation Kit - Includes everything you need to install a new radiator - Assembled By ECS - Audi

Includes everything you need to install a new radiator 10X Entries For Our 25th Anniversary Sweepstakes!
Manual transmission vehicles

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586571
Mfg#:
8E0121251A2KT
Back Ordered
$249.80 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Emissions Service Kit

ES#2219685 - 06A103245F - Emissions Service Kit - Complete PCV Kit for your engine - Assembled By ECS - Audi

Complete PCV Kit for your engine 10X Entries For Our 25th Anniversary Sweepstakes!
From VIN 8E-4-000001, split is in the 2004 model year - with 25mm relief valve

Brand:
Assembled By ECS - Corporate Logo
ES#:
2219685
Mfg#:
06A103245F
Back Ordered
ON SALE!
$563.57

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

$511.11 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Ignition Service Kit

ES#2532258 - 06C905115LKT3 - Ignition Service Kit - Includes six Meyle coil packs and six NGK spark plugs - Assembled By ECS - Audi

Includes six Meyle coil packs and six NGK spark plugs 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2532258
Mfg#:
06C905115LKT3
Back Ordered
ON SALE! SAVE 42%
$407.99

This product was last offered at the strikethrough price on
03-14-2026

$238.67 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Manifold Installation Kit

ES#2762257 - 06C253031JKT - Exhaust Manifold Installation Kit - Includes the necessary hardware and gasket to install the manifold - Assembled By ECS - Audi

Includes the necessary hardware and gasket to install the manifold 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2762257
Mfg#:
06C253031JKT
Back Ordered
ON SALE! SAVE 11%
$169.99

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

$151.63 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate

ES#7557 - 078198675 - ECS Tuning Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job. Buy it all together & save. Includes ECS Cam locking tool. - Assembled By ECS - Audi

Everything you need for a complete timing belt job. Buy it all together & save. Includes ECS Cam locking tool. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
7557
Mfg#:
078198675
Back Ordered
Auto Notify
ON SALE! SAVE 13%
$457.99

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

$396.83 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate Plus

ES#1893862 - 078198675 - ECS Tuning Timing Belt Kit - Ultimate Plus - The most comprehensive timing belt kit on the market! Includes ECS Cam Locking Tool. - Assembled By ECS - Audi

The most comprehensive timing belt kit on the market! Includes ECS Cam Locking Tool. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
1893862
Mfg#:
078198675
Back Ordered
Auto Notify
ON SALE! SAVE 12%
$504.99

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

$442.70 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Expansion Tank Replacement Kit

ES#2586882 - 8D0121403DKT - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new cap and hardware 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586882
Mfg#:
8D0121403DKT
Back Ordered
$59.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Installation Kit

ES#3659151 - 4b3121276aktKT - Radiator Installation Kit - Install new hardware with your new radiator - Assembled By ECS - Audi

Install new hardware with your new radiator 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3659151
Mfg#:
4B3121276AKTKT
Back Ordered
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Installation Kit

ES#5434914 - 077906037AKT7 - Fuel Injector Installation Kit - A simple to service all six injectors! - Assembled By ECS - Audi

A simple to service all six injectors! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5434914
Mfg#:
077906037AKT7
Back Ordered
ON SALE!
$52.86

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

$51.27 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate

ES#3327 - 078198579 V2 - ECS Tuning Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job. Buy it all together & save. - Assembled By ECS - Audi

Everything you need for a complete timing belt job. Buy it all together & save. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3327
Mfg#:
078198579 V2
Back Ordered
Auto Notify
ON SALE!
$220.99

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

$218.12 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pan Replacement Kit

ES#2602641 - 078103604HKT - Oil Pan Replacement Kit - Everything required to replace your leaking pan, including the oil change - Assembled By ECS - Audi

Everything required to replace your leaking pan, including the oil change 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602641
Mfg#:
078103604HKT
Back Ordered
ON SALE!
$294.99

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

$286.64 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Emissions Service Kit

ES#2219683 - 06A103213AM - Emissions Service Kit - Don't let a clogged PCV system ruin your engine - Assembled By ECS - Audi

Don't let a clogged PCV system ruin your engine 10X Entries For Our 25th Anniversary Sweepstakes!
From VIN 8E-4-000001, split is in the 2004 model year - with 20mm relief valve

Brand:
Assembled By ECS - Corporate Logo
ES#:
2219683
Mfg#:
06A103213AM
Back Ordered
ON SALE! SAVE 10%
$485.99

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

$439.45 USD
Free Shipping
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.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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