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Audi A4 Engine Parts & Accessories

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Supertech Performance Valvetrain Upgrade Kit

ES#5481342 - sprk-audi18vKT - Supertech Performance Valvetrain Upgrade Kit - This high-performance engine kit combines an upgraded dual-spring valvetrain, Inconel and nitrided valves, a top-end gasket set, and premium tri-metal race main bearings. - Assembled By ECS - Audi Volkswagen

This high-performance engine kit combines an upgraded dual-spring valvetrain, Inconel and nitrided valves, a top-end gasket set, and premium tri-metal race main bearings. 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
5481342
Mfg#:
SPRK-AUDI18VKT
Back Ordered
$1702.99 USD
Free Shipping
on orders $49 and up
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 Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

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

Complete Engine Mount Kit

ES#2587089 - 8D0199379AQKT - Complete Engine Mount Kit - Includes all mounts and hardware to reduce driveline vibrations - Assembled By ECS - Audi

Includes all mounts and hardware to reduce driveline vibrations 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
2587089
Mfg#:
8D0199379AQKT
Back Ordered
$317.99

This product was last offered at the strikethrough price on
08-31-2026

$315.99 USD
Free Shipping
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 Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
5434914
Mfg#:
077906037AKT7
Back Ordered
$53.58 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 Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
3327
Mfg#:
078198579 V2
Back Ordered
$232.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pan Replacement Kit

ES#2602606 - 058103598CKT2 - 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 Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
For vehicles without oil level sensors

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602606
Mfg#:
058103598CKT2
Back Ordered
$422.99 USD
Free Shipping
This product is lifetime replacement eligible Partial 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 Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602641
Mfg#:
078103604HKT
Back Ordered
$321.99 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 Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
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
$494.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Replacement Kit - Stage 1

ES#2718902 - 068117021Bkt - Oil Cooler Replacement Kit - Stage 1 - Everything you need to replace your leaking oil cooler - Assembled By ECS - Audi

Everything you need to replace your leaking oil cooler 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
Up to VIN 8D-X-199999, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2718902
Mfg#:
068117021BKT
Back Ordered
$90.52

This product was last offered at the strikethrough price on
06-16-2026

$75.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 120 Amps

ES#2523995 - 06B903018EXBOSKI - Remanufactured Alternator - 120 Amps - Includes a $70 refundable core charge - Bosch - Audi Volkswagen

Includes a $70 refundable core charge We Price Match - Give Us A Call or Chat!
Please check current alternator for correct amps

Brand:
Bosch - Corporate Logo
ES#:
2523995
Mfg#:
06B903018EXBOSKI
Back Ordered
$446.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit - Stage 1

ES#2538557 - 09356KT - Ignition Service Kit - Stage 1 - Includes Bosch plug wires and spark plugs - Bosch - Audi

Includes Bosch plug wires and spark plugs We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2538557
Mfg#:
09356KT
Back Ordered
$291.99

This product was last offered at the strikethrough price on
10-13-2026

$261.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 90 Amps

ES#259920 - al0725xKt - Remanufactured Alternator - 90 Amps - Includes a $78 refundable core charge - Bosch - Audi Volkswagen

Includes a $78 refundable core charge We Price Match - Give Us A Call or Chat!
For cars with Bosch style 90 amp alternators. Please check current part number before ordering.

Brand:
Bosch - Corporate Logo
ES#:
259920
Mfg#:
AL0725XKT
Back Ordered
$372.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Starter

ES#2712870 - 078911023DXKT2 - Remanufactured Starter - Price includes a $39.00 refundable core charge - Bosch - Audi Volkswagen

Price includes a $39.00 refundable core charge We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2712870
Mfg#:
078911023DXKT2
Back Ordered
$326.28 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Washer - Priced Each

ES#4940359 - N01152527 - Washer - Priced Each - Install new hardware with your new parts. 8.4x16x1.6 - Bremmen Parts - Audi Volkswagen

Install new hardware with your new parts. 8.4x16x1.6 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4940359
Mfg#:
N01152527
Special Order: No Guaranteed ETA
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Street Sport Transmission Mount – 50 Durometer

ES#4830808 - CTS-TM-AUDI4-50D - Street Sport Transmission Mount 50 Durometer - A significant upgrade to performance and feel over the stock mount. - CTS - Audi

A significant upgrade to performance and feel over the stock mount. Early B6 A4 w/ 5-Speed Manual Transmissions only.

Brand:
CTS - Corporate Logo
ES#:
4830808
Mfg#:
CTS-TM-AUDI4-50D
Special Order: No Guaranteed ETA
$84.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo B8/B8.5 2.0T Direct Fit FMIC Kit

ES#4819059 - CTS-B8-DFADS - CTS Turbo B8/B8.5 2.0T Direct Fit FMIC Kit - Includes ADS System Oil Cooler - CTS - Audi

Includes ADS System Oil Cooler

Brand:
CTS - Corporate Logo
ES#:
4819059
Mfg#:
CTS-B8-DFADS
Special Order: No Guaranteed ETA
$749.99 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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