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Audi S4 Engine Parts & Accessories

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Premium Oil Service Kit

ES#3604823 - 107385KT - Premium Oil Service Kit - Includes Motul Specific 508.00/509.00 0W20 oil, Filter, drain plug, and washer for a complete oil service - Assembled By ECS - Audi

Includes Motul Specific 508.00/509.00 0W20 oil, Filter, drain plug, and washer for a complete oil service 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#:
3604823
Mfg#:
107385KT
In Stock
ON SALE!
$157.99

This product was last offered at the strikethrough price on
06-08-2026

$147.89 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

3.0 TFSI Supercharger Crank Pulley Upgrade - 190mm

ES#4005438 - 034-145-Z042 - 3.0 TFSI Supercharger Crank Pulley Upgrade - 190mm - Increase supercharger rotational speed to provide more boost to your engine - 034Motorsport - Audi

Increase supercharger rotational speed to provide more boost to your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*To be used with Stage 2 software - Stage 2+ software necessary if used in conjunction with a supercharger pulley upgrade*

Brand:
034Motorsport - Corporate Logo
ES#:
4005438
Mfg#:
034-145-Z042
Back Ordered
Auto Notify
$502.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Autotech High Volume Fuel Pump Kit

ES#4829926 - 10-127-113K - Autotech High Volume Fuel Pump Kit - EA839 precision-machined internals - Autotech - Audi Porsche

EA839 precision-machined internals affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Autotech - Corporate Logo
ES#:
4829926
Mfg#:
10-127-113K
In Stock
$339.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Billet Oil Cap - EA839

ES#4782771 - 034-110-Z018 - 034Motorsport Billet Oil Cap - EA839 - Transform your engine bay with the beautiful and sexy 034Motorsport Billet Oil Cap. - 034Motorsport - Audi Porsche

Transform your engine bay with the beautiful and sexy 034Motorsport Billet Oil Cap. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4782771
Mfg#:
034-110-Z018
In Stock
$146.00 USD
Free Shipping

Cylinder Head Gasket Kit

ES#4941114 - 340.590 - Cylinder Head Gasket Kit - Comprehensive gasket set for engine rebuilds - Elring - Audi

Comprehensive gasket set for engine rebuilds affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Elring - Corporate Logo
ES#:
4941114
Mfg#:
340.590
In Stock
$232.99

This product was last offered at the strikethrough price on
04-15-2026

$208.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Intercooler Kit

ES#4475593 - 06E145621SKT2 - Supercharger Intercooler Kit - Everything needed to replace failed heat exchangers. - Genuine Volkswagen Audi - Audi

Everything needed to replace failed heat exchangers. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4475593
Mfg#:
06E145621SKT2
Ships on Jun 15, 2026
$1719.50

This product was last offered at the strikethrough price on
04-20-2026

$1457.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Timing Chain Kit

ES#3438261 - 079109229KT12 - Timing Chain Kit - Includes the upgraded RS4 lower metal guide rail, iwis chains, and OEM tensioners/guides - The essentials necessary to get the job done! - Assembled By ECS - Audi

Includes the upgraded RS4 lower metal guide rail, iwis chains, and OEM tensioners/guides - The essentials necessary to get the job done! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
From VIN# 8E-4-200001, split is in 2004 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
3438261
Mfg#:
079109229KT12
In Stock at Vendor
ON SALE! SAVE 27%
$1419.99

This product was last offered at the strikethrough price on
01-03-2026

$1040.24 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

High Performance B5 S4 All Aluminum Radiator

ES#3220600 - 7071 - High Performance B5 S4 All Aluminum Radiator - Great option if you™re looking to modify, upgrade, or simply keep up with the maintenance - CSF - Audi

Great option if you’re looking to modify, upgrade, or simply keep up with the maintenance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits manual transmission models only

Brand:
CSF - Corporate Logo
ES#:
3220600
Mfg#:
7071
In Stock
$559.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Supercharger Crank Pulley Upgrade - 187mm

ES#3438177 - CTS-HW-266-187 - CTS Turbo Supercharger Crank Pulley Upgrade - 187mm - Larger diameter pulley increases the speed at which the supercharger spins, increasing the boost pressure output - CTS - Audi Porsche

Larger diameter pulley increases the speed at which the supercharger spins, increasing the boost pressure output affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*NOTE: This kit must be used with appropriate "Stage 2" performance software.

Brand:
CTS - Corporate Logo
ES#:
3438177
Mfg#:
CTS-HW-266-187
In Stock
$379.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

SuperDuper Turbo Inlet Pipe

ES#4642915 - 034-108-5036 - SuperDuper Turbo Inlet Pipe - Designed to maximize performance for Dynamic+ Stage 3 Hybrid Turbo Tuning Software - 034Motorsport - Audi

Designed to maximize performance for Dynamic+ Stage 3 Hybrid Turbo Tuning Software affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4642915
Mfg#:
034-108-5036
In Stock
$180.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Street Density Line Transmission Mount

ES#2952012 - 034-509-4001sd - Street Density Line Transmission Mount - Increase performance and durability without sacrificing comfort - 034Motorsport - Audi

Increase performance and durability without sacrificing comfort affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Manual transmission only

Brand:
034Motorsport - Corporate Logo
ES#:
2952012
Mfg#:
034-509-4001SD
In Stock
$116.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VWR Billet Washer Fluid Reservoir Cap - Black

ES#3188200 - VWR19G704 - VWR Billet Washer Fluid Reservoir Cap - Black - Billet aluminum washer fluid cap to replace your blue plastic one - Racingline - Audi Volkswagen

Billet aluminum washer fluid cap to replace your blue plastic one affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
3188200
Mfg#:
VWR19G704
In Stock
$103.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Kit - 6 Bolt

ES#4905071 - 06m121013d0KT - Water Pump Kit - 6 Bolt - Genuine Replacement. Includes pulley and hardware - Genuine Volkswagen Audi - Audi

Genuine Replacement. Includes pulley and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes Updated 6-Bolt Water Pump and Pulley

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4905071
Mfg#:
06M121013D0KT
In Stock
$446.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi R8 Style Oil Cap

ES#4685902 - 420103485B - Audi R8 Style Oil Cap - Add new styling in minutes with this Audi R8 style oil cap - Bremmen Parts - Audi Volkswagen

Add new styling in minutes with this Audi R8 style oil cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4685902
Mfg#:
420103485B
In Stock
ON SALE! SAVE 14%
$34.99

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

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Engine Mount Kit - Audi B8 A4/S4/Q5, C7 A6

ES#4315393 - 002734ECS01 - ECS Performance Engine Mount Kit - Audi B8 A4/S4/Q5, C7 A6 - Get rid of the slop with ECS performance polyurethane engine mounts! - ECS - Audi

Get rid of the slop with ECS performance polyurethane engine mounts! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4315393
Mfg#:
002734ECS01
Ships in 1-2 days
ON SALE! SAVE 20%
$703.99

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

$563.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Valve - Priced Each

ES#2802565 - 06D109611H - Exhaust Valve - Priced Each - A sodium filled valve - Rein - Audi Volkswagen

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

Brand:
Rein - Corporate Logo
ES#:
2802565
Mfg#:
06D109611H
In Stock
$32.99 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.

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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