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Audi S4 Engine Parts & Accessories

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ES#261694 - 1K0955455 - Washer Fluid Reservoir Cap - Keep your washer fluid free from debris - Genuine Volkswagen Audi - Audi Volkswagen

Keep your washer fluid free from debris affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
261694
Mfg#:
1K0955455
In Stock
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5457611 - 034-103-3400 - 034SPI Boot Loader Unlock (BLU) Harness For AL552/AL952 Transmissions - Unlock your 2022+ Audi AL552 TCU with the 401 boot loader from the comfort of your home. - 034Motorsport - Audi

Unlock your 2022+ Audi AL552 TCU with the 401 boot loader from the comfort of your home. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
5457611
Mfg#:
034-103-3400
Ships in 3 Business Days
$145.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#284530 - 079107065AK - Piston Assembly For Cylinders 5-8 - Priced Each - Includes piston rings, wrist pin, and circle clips - Genuine Volkswagen Audi - Audi

Includes piston rings, wrist pin, and circle clips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284530
Mfg#:
079107065AK
In Stock
8% off MSRP

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

$791.99

This product was last offered at the strikethrough price on
06-25-2026

$724.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4159245 - 079959231L - Secondary Air Injection Pump - Keep your engine running efficiently - Pierburg - Audi

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2012 model year

Brand:
Pierburg - Corporate Logo
ES#:
4159245
Mfg#:
079959231L
In Stock at Vendor
$745.99

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

$724.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#284537 - 079107066AK - Piston Assembly For Cylinders 1-4 - Priced Each - Includes piston rings, wrist pin, and circle clips - Genuine Volkswagen Audi - Audi

Includes piston rings, wrist pin, and circle clips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284537
Mfg#:
079107066AK
Ships in 8 Business Days
8% off MSRP

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

$791.99

This product was last offered at the strikethrough price on
06-25-2026

$724.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4626 - 078109487A - Tensioning Lever - Applies pressure from the damper to the tensioner roller - Ina - Audi Volkswagen

Applies pressure from the damper to the tensioner roller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
4626
Mfg#:
078109487A
In Stock
$42.59

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

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2864547 - 034-101-3066 - Silicone Diverter Valve Pressure Hose - Pair - This hose pair is designed to replace the outrageously expensive, failure-prone factory rubber hoses - 034Motorsport - Audi

This hose pair is designed to replace the outrageously expensive, failure-prone factory rubber hoses affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2864547
Mfg#:
034-101-3066
In Stock
$40.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1910119 - 8E0121403F - Coolant Expansion Tank - Coolant level sensor enclosed in tank - Vaico - Audi

Coolant level sensor enclosed in tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
1910119
Mfg#:
8E0121403F
In Stock
ON SALE! SAVE 40%
$75.99

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

$45.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#280782 - 06E121058E - Oil Cooler Hose - Supply - Connects the oil cooler to the hard water tube - Genuine Volkswagen Audi - Audi

Connects the oil cooler to the hard water tube affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280782
Mfg#:
06E121058E
In Stock
31% off MSRP

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

$34.99

This product was last offered at the strikethrough price on
02-23-2026

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2771605 - 06E903341A - Accessory Belt Idler Pulley - Also referred to as the 'relay roller' - Ina - Audi

Also referred to as the 'relay roller' affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2771605
Mfg#:
06E903341A
In Stock
$30.65

This product was last offered at the strikethrough price on
03-16-2026

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4381906 - 30TFSI-D-UC - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Audi

Choose the stage that meets your power goals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4381906
Mfg#:
30TFSI-D-UC
In Stock
ON SALE!
Starting at $714.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2626345 - 036109675A - Valve Stem Seal - Priced Each - Seals the valve stem in the cylinder head. 6mm - Victor Reinz - Audi Volkswagen

Seals the valve stem in the cylinder head. 6mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
2626345
Mfg#:
036109675A
In Stock
$3.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3180958 - 8W0253115G - Exhaust Gasket - Seals the turbocharger to the catalytic converter - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3180958
Mfg#:
8W0253115G
In Stock
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
01-07-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3712315 - 06E145100R - Vacuum Pump - Generates vacuum when under positive pressure - Rein - Audi Volkswagen

Generates vacuum when under positive pressure 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:
Rein - Corporate Logo
ES#:
3712315
Mfg#:
06E145100R
Ships in 4 Business Days
$712.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2569854 - 078109119JKT3 - Timing Belt Kit - Ultimate Plus With Gates Racing Timing Belt & Cam Locking Tool - Looking for the best timing belt kit on the market? Look no further than ECS Tuning - Assembled By ECS - Audi

Looking for the best timing belt kit on the market? Look no further than ECS Tuning 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#:
2569854
Mfg#:
078109119JKT3
In Stock
ON SALE! SAVE 10%
$786.99

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

$711.96 USD
Free Shipping
This product is lifetime replacement eligible Partial 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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