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Audi S4 Engine Parts & Accessories

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Radiator Attachment Bolt - Priced Each

ES#10968 - 8D0121200 - Radiator Attachment Bolt - Priced Each - Secures the radiator to the core support - Genuine Volkswagen Audi - Audi

Secures the radiator to the core support affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
10968
Mfg#:
8D0121200
Ships in 1-2 days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Crankshaft Seal

ES#5340275 - 079103051G - Front Crankshaft Seal - Keep your engine fresh and leak free - Elring - Audi

Keep your engine fresh and leak free affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
From VIN 8E-4-163756, split is in the 2004 model year

Brand:
Elring - Corporate Logo
ES#:
5340275
Mfg#:
079103051G
In Stock
$25.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Belt

ES#3419062 - 06E903137AB - Supercharger Belt - Replace your cracked or worn belt - Mitsuboshi - Audi Volkswagen

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

Brand:
Mitsuboshi - Corporate Logo
ES#:
3419062
Mfg#:
06E903137AB
In Stock at Vendor
$35.99

This product was last offered at the strikethrough price on
03-20-2026

$25.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

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

Brand:
Wehrle - Corporate Logo
ES#:
3437884
Mfg#:
4H0951253
In Stock at Vendor
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Plastic Dowel Pin - Pack Of 25

Secures the belly pan to the fender liners affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4940358
Mfg#:
4A0805121A
Special Order: No Guaranteed ETA
Auto Notify
ON SALE! SAVE 11%
$28.99

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

$25.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Standard Turbo Inlet Pipe Adapter Ring TS2 - 61.2mm

ES#4858428 - 034-108-Z124 - Standard Turbo Inlet Pipe Adapter Ring TS2 - 61.2mm - These Turbo Inlet Adapter Rings are designed to be a smooth transition between the turbocharger and accompanying Turbo Inlet. - 034Motorsport - Audi

These Turbo Inlet Adapter Rings are designed to be a smooth transition between the turbocharger and accompanying Turbo Inlet. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4858428
Mfg#:
034-108-Z124
Ships in 2 Business Days
$25.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Relay Roller

ES#1306668 - 078109244H - Relay Roller - The idler pulley for the toothed timing belt - GMB - Audi Volkswagen

The idler pulley for the toothed timing belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
GMB - Corporate Logo
ES#:
1306668
Mfg#:
078109244H
Ships in 1 Business Day
$25.99

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

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve

ES#2814234 - 1C0906517A - Purge Valve - Common cure for DTC P0441 - Hamburg Tech - Audi Volkswagen

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814234
Mfg#:
1C0906517A
Ships in 2 Business Days
$35.99

This product was last offered at the strikethrough price on
01-25-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Service Kit

ES#4845518 - 06m133237aKT - Throttle Body Service Kit - Replace your throttle body o-rings with new hardware at the same time! - Genuine Volkswagen Audi - Audi

Replace your throttle body o-rings with new hardware at the same time! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4845518
Mfg#:
06M133237AKT
Ships in 1-2 days
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#3463358 - 8D0121055T - Radiator Hose - Lower - Connects the lower radiator port to the thermostat housing - Hudson - Audi Volkswagen

Connects the lower radiator port to the thermostat housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hudson - Corporate Logo
ES#:
3463358
Mfg#:
8D0121055T
Ships in 4 Business Days
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Battery Ventilation Hose

ES#380161 - 4D0915531 - Battery Ventilation Hose - 1442mm, Replacement hose for proper battery ventilation - Genuine Volkswagen Audi - Audi

1442mm, Replacement hose for proper battery ventilation affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
380161
Mfg#:
4D0915531
Ships in 8 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.

$27.99

This product was last offered at the strikethrough price on
06-23-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump Hose

ES#6800 - 078121082E - Auxiliary Water Pump Hose - Connects the auxiliary water pump to the coolant pipe under the intake manifold - Original Equipment Supplier - Audi

Connects the auxiliary water pump to the coolant pipe under the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
6800
Mfg#:
078121082E
Back Ordered
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Filter

Keep clean air running through your engine 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#:
4818321
Mfg#:
8W0133843
Special Order: No Guaranteed ETA
$24.99 USD
Free Shipping
on orders $49 and up

Oil Pressure Switch - 1.8 bar

ES#2812957 - 056919081E - Oil Pressure Switch - 1.8 bar - Low pressure screw in oil pressure switch. M10x1 - Hamburg Tech - Audi Volkswagen

Low pressure screw in oil pressure switch. M10x1 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
AAN Engine Code Only

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812957
Mfg#:
056919081E
Ships in 2 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Snub Mount - Priced Each

ES#2627344 - 8D0199339P - Snub Mount - Priced Each - Reduce excessive engine vibrations - Rein - Audi Volkswagen

Reduce excessive engine vibrations 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#:
2627344
Mfg#:
8D0199339P
Back Ordered
$8.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Drain Plug

ES#1306602 - N90813202 - Oil Drain Plug - Includes crush washer. M14x1.5 - OE Aftermarket - Audi Volkswagen

Includes crush washer. M14x1.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
OE Aftermarket - Corporate Logo
ES#:
1306602
Mfg#:
N90813202
Ships in 1-2 days
$3.05 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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