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Audi S4 Engine Parts & Accessories

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Supercharger Pulley Upgrade Kit

ES#4043098 - CTS-HW-0333 - Supercharger Pulley Upgrade Kit - Software & installation kit not included in this upgrade kit - CTS - Audi

Software & installation kit not included in this upgrade kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*For models with bolt-on style supercharger pulleys - 3.0 TFSI Performance Software is sold separately an

Brand:
CTS - Corporate Logo
ES#:
4043098
Mfg#:
CTS-HW-0333
Ships in 7 Business Days
$159.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cam Chain Tensioner Gasket - Cylinders 1-4

ES#284548 - 079109092B - Cam Chain Tensioner Gasket - Cylinders 1-4 - Seals between the cam chain tensioner and the cylinder head - Genuine Volkswagen Audi - Audi

Seals between the cam chain tensioner and the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284548
Mfg#:
079109092B
In Stock
6% off MSRP

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

$17.00

This product was last offered at the strikethrough price on
07-04-2026

$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pressure Regulator

ES#283795 - 078133534C - Fuel Pressure Regulator - Stop leaking fuel and losing performance - Genuine Volkswagen Audi - Audi Volkswagen

Stop leaking fuel and losing performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
283795
Mfg#:
078133534C
Ships in 2 Business Days
7% off MSRP

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

$273.99

This product was last offered at the strikethrough price on
07-04-2026

$254.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley Hardware Kit

ES#271279 - 028903320C - Alternator Pulley Hardware Kit - A new washer and nut to install your pulley - Genuine Volkswagen Audi - Audi Volkswagen

A new washer and nut to install your pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For use with Bosch style alternators

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
271279
Mfg#:
028903320C
Ships in 2 Business Days
11% off MSRP

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

$18.99

This product was last offered at the strikethrough price on
07-04-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Check Valve - Priced Each

ES#4818424 - 058905291K - Check Valve - Priced Each - Used in multiple locations in the vacuum system - Bremmen Parts - Audi Volkswagen

Used in multiple locations in the vacuum system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818424
Mfg#:
058905291K
Ships on Sep 8, 2026
Auto Notify
ON SALE! SAVE 35%
$4.99

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

$3.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Belt Kit W/ Tensioner

ES#2678388 - 06E903137ABKT4 - Supercharger Belt Kit W/ Tensioner - Keep your supercharger running properly with a new tensioner and drive belt - Genuine Volkswagen Audi - Audi

Keep your supercharger running properly with a new tensioner and drive belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From production date 7/12/2011

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2678388
Mfg#:
06E903137ABKT4
Ships on Jul 23, 2026
$268.99

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

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

Idler Pulley

ES#2090916 - 078121235G - Idler Pulley - Provides mounting for the fan clutch - MTC - Audi Volkswagen

Provides mounting for the fan clutch affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MTC - Corporate Logo
ES#:
2090916
Mfg#:
078121235G
Ships in 6 Business Days
$126.99 USD
Free Shipping

Camshaft Follower / Rocker Arm Spacer - Priced Each

ES#282489 - 077109320CB - Camshaft Follower / Rocker Arm Spacer - Priced Each - Housed in the roller rocker levers - Qty 3 each in the intake side, qty 2 each in the exhaust side - qty 40 in total for both cylinder heads - Genuine Volkswagen Audi - Audi

Housed in the roller rocker levers - Qty 3 each in the intake side, qty 2 each in the exhaust side - qty 40 in total for both cylinder heads affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
282489
Mfg#:
077109320CB
In Stock
ON SALE!
$53.99

This product was last offered at the strikethrough price on
06-15-2026

$50.72 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Dynamic+ Supercharger Belt - 1270mm

ES#5388892 - 034-145-Z056 - 034Motorsport Dynamic+ Supercharger Belt - 1270mm - Precision-manufactured to strict OEM dimensional specifications with advanced materials. High heat resistance to ensure long-term durability in extreme environments. - 034Motorsport - Audi

Precision-manufactured to strict OEM dimensional specifications with advanced materials. High heat resistance to ensure long-term durability in extreme environments. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
5388892
Mfg#:
034-145-Z056
In Stock
ON SALE! SAVE 10%
$28.00

This product was last offered at the strikethrough price on
06-28-2026

$25.20 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#516390 - 4H0951253 - Multipurpose Relay - Priced Each - Replacement 4 pin relay - Genuine Volkswagen Audi - Audi Volkswagen

Replacement 4 pin relay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used for fan control

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
516390
Mfg#:
4H0951253
Ships in 2 Business Days
11% off MSRP

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

$46.99

This product was last offered at the strikethrough price on
07-04-2026

$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Crankshaft Seal - With Flange

ES#278271 - 068103171F - Rear Crankshaft Seal - With Flange - Replaces all rear crank seals that do not separate from flange. - Genuine Volkswagen Audi - Audi Volkswagen

Replaces all rear crank seals that do not separate from flange. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
278271
Mfg#:
068103171F
Special Order: No Guaranteed ETA
7% off MSRP

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

$268.99

This product was last offered at the strikethrough price on
07-04-2026

$250.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Inlet Pipe O-Ring - Priced Each

ES#6845 - 078133148A - Inlet Pipe O-Ring - Priced Each - Seals the inlet pipe to the turbocharger - Genuine Volkswagen Audi - Audi

Seals the inlet pipe to the turbocharger affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
6845
Mfg#:
078133148A
In Stock
ON SALE!
$10.99

This product was last offered at the strikethrough price on
06-15-2026

$10.02 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Retaining Clip - Priced Each

ES#2538001 - 1J0121142 - Cooling Hose Retaining Clip - Priced Each - Secures the radiator hose flange in place. 32mm - Febi - Audi Volkswagen

Secures the radiator hose flange in place. 32mm 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:
Febi - Corporate Logo
ES#:
2538001
Mfg#:
1J0121142
In Stock
$2.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Allen Bolt (5mm) - Priced Each

ES#2770514 - N01474011 - Allen Bolt (5mm) - Priced Each - Stainless steel for extra corrosion resistance. M6x16 - ECS - Audi Volkswagen

Stainless steel for extra corrosion resistance. M6x16 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2770514
Mfg#:
N01474011
In Stock
ON SALE! SAVE 25%
$0.99

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

$0.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve service kit

ES#2771261 - 077103245Bkt3 - Pressure Control Valve service kit - Everything needed to replace the PCV - Assembled By ECS - Audi

Everything needed to replace the PCV 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#:
2771261
Mfg#:
077103245BKT3
Ships in 3 Business Days
$250.11 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Jackal Motorsports 3.0TFSI Throttle Body Adapter Harness

ES#4907951 - JACKAL-30T-H - Jackal Motorsports 3.0TFSI Throttle Body Adapter Harness - Install your 3.0T throttle body upgrade without the hassle of repinning your factory harness! - Jackal Motorsports - Audi

Install your 3.0T throttle body upgrade without the hassle of repinning your factory harness! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Jackal Motorsports - Corporate Logo
ES#:
4907951
Mfg#:
JACKAL-30T-H
Ships in 1 Business Day
$25.00 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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