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Audi S4 Engine Parts & Accessories

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Timing Chain Kit

ES#2593417 - 079109229KT1 - Timing Chain Kit - Includes the upgraded RS4 metal guide rail, OEM additional guide rails, OE timing chains and tensioners - The essentials necessary to get the job done! - Assembled By ECS - Audi

Includes the upgraded RS4 metal guide rail, OEM additional guide rails, OE timing chains and tensioners - 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!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593417
Mfg#:
079109229KT1
Ships in 5 Business Days
ON SALE! SAVE 13%
$2065.99

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

$1802.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Integrated Engineering 3.0T "Dual Pulley" Power Kit

ES#4351842 - ieppcgj2 - Integrated Engineering 3.0T "Dual Pulley" Power Kit - Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU software plus "Dual Pulley" setup - Integrated Engineering - Audi

Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU software plus "Dual Pulley" setup affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Fits vehicles with manual transmissions only

Brand:
Integrated Engineering - Corporate Logo
ES#:
4351842
Mfg#:
IEPPCGJ2
In Stock
$1799.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

ES#3419449 - 06E906265AJ - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - NTK - Audi

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits the left and right position

Brand:
NTK - Corporate Logo
ES#:
3419449
Mfg#:
06E906265AJ
In Stock at Vendor
$205.99

This product was last offered at the strikethrough price on
05-07-2026

$199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Higher Output Ignition Coil - Red - Priced Each

ES#4846419 - VWR900003 - RacingLine Higher Output Ignition Coil - Red - Priced Each - Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. - Racingline - Audi Volkswagen

Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4846419
Mfg#:
VWR900003
In Stock
$39.99 USD
Free Shipping
on orders $49 and up

Gas Cap With Strap

ES#3514670 - 4F0201550J - Gas Cap With Strap - Replace your leaking cap, or the one you left at the pump - URO - Audi

Replace your leaking cap, or the one you left at the pump 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!
For sedan/avant models only

Brand:
URO - Corporate Logo
ES#:
3514670
Mfg#:
4F0201550J
In Stock
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#4810729 - 07L905163C - Camshaft Position Sensor - Located in the cylinder head - URO - Audi Volkswagen

Located in the cylinder head 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#:
4810729
Mfg#:
07L905163C
In Stock
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#4690984 - 06M121115K - Thermostat Housing - Common point of failure for the cooling system. - Vernet - Audi

Common point of failure for the cooling system. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vernet - Corporate Logo
ES#:
4690984
Mfg#:
06M121115K
In Stock
$70.99

This product was last offered at the strikethrough price on
05-07-2026

$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Belt

ES#280998 - 06E903137AB - Supercharger Belt - Replace your cracked or worn belt - Genuine Volkswagen Audi - Audi Volkswagen

Replace your cracked or worn belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280998
Mfg#:
06E903137AB
In Stock
7% off MSRP

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

$68.99

This product was last offered at the strikethrough price on
05-07-2026

$63.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Higher Output Ignition Coil - Blue - Priced Each

ES#4708243 - VWR900000 - RacingLine Higher Output Ignition Coil - Blue - Priced Each - Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. - Racingline - Audi Volkswagen

Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4708243
Mfg#:
VWR900000
Ships on Jul 15, 2026
Auto Notify
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Compressor Intercooler Gasket - Priced Each

ES#4150347 - 06E145723A - Compressor Intercooler Gasket - Priced Each - Seals the intercooler ends to the rear of the supercharger compressor - Ajusa - Audi Volkswagen

Seals the intercooler ends to the rear of the supercharger compressor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Ajusa - Corporate Logo
ES#:
4150347
Mfg#:
06E145723A
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IP High Performance Ignition Coil Set - Set Of Six

ES#4389439 - IP-A121606 - IP High Performance Ignition Coil Set - Set Of Six - 4X more spark energy than stock coils! - Ignition Projects - Audi

4X more spark energy than stock coils! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Ignition Projects - Corporate Logo
ES#:
4389439
Mfg#:
IP-A121606
Ships in 3 Business Days
$895.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Exact-Fit High Flow Air Filter - Dry

ES#4461008 - 012054LA07-DRY - ECS Exact-Fit High Flow Air Filter - Dry - High flow filter replacement to get your engine breathing better than new! - ECS - Audi

High flow filter replacement to get your engine breathing better than new! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4461008
Mfg#:
012054LA07-DRY
In Stock
ON SALE! SAVE 53%
$81.99

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

$38.90 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Rail Line

ES#1904950 - 06E127501AA - Fuel Rail Line - This fuel line connects the left and right fuel rails to the HPFP - Genuine Volkswagen Audi - Audi

This fuel line connects the left and right fuel rails to the HPFP affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1904950
Mfg#:
06E127501AA
In Stock
7% off MSRP

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

$271.99

This product was last offered at the strikethrough price on
06-19-2026

$253.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Integrated Engineering 3.0T 207mm Dual Pulley Power Kit

ES#4491710 - IEBAVJ6KT - Integrated Engineering 3.0T 207mm Dual Pulley Power Kit - The one pulley solution for dual pulley power! - Integrated Engineering - Audi

The one pulley solution for dual pulley power! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Fits vehicles with manual transmissions only

Brand:
Integrated Engineering - Corporate Logo
ES#:
4491710
Mfg#:
IEBAVJ6KT
In Stock
$1776.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#2827260 - SSXAU046 - Cat-Back Exhaust System - Resonated - 2.25" stainless steel with quad 76.2mm polished tips - Milltek Sport - Audi

2.25" stainless steel with quad 76.2mm polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
2827260
Mfg#:
SSXAU046
Ships in 3 Business Days
$1776.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Silicone Y-Pipe Hose Pair - Big Bore

ES#2864561 - 034-108-3001 - Silicone Y-Pipe Hose Pair - Big Bore - Allows a full 2.5" diameter transition to the lower RS4 inlet pipes - 034Motorsport - Audi

Allows a full 2.5" diameter transition to the lower RS4 inlet pipes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2864561
Mfg#:
034-108-3001
In Stock
$296.00 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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