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Audi S4 Engine Parts & Accessories

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ES#2813121 - 078109244H - Relay Roller - The idler pulley for the toothed timing belt - Hamburg Tech - Audi Volkswagen

The idler pulley for the toothed timing belt 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#:
2813121
Mfg#:
078109244H
Ships in 1 Business Day
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3625024 - 079919523B - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings - FAE - Audi Volkswagen

Monitors coolant temperature for fan control & gauge readings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FAE - Corporate Logo
ES#:
3625024
Mfg#:
079919523B
Ships on Jul 20, 2026
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#264109 - 4A0121403 - Coolant Expansion Tank - Replace cracked tanks. - Meyle - Audi

Replace cracked tanks. 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:
Meyle - Corporate Logo
ES#:
264109
Mfg#:
4A0121403
Ships on Nov 3, 2026
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Monitors coolant temperature for fan control & gauge readings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Four Seasons - Corporate Logo
ES#:
4057463
Mfg#:
06A919501A
In Stock at Vendor
$33.99

This product was last offered at the strikethrough price on
01-16-2026

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Manifold absolute pressure sensor, lets your ECU know how much air pressure is in your intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Located on the rear of the supercharger

Brand:
Spectra Premium - Corporate Logo
ES#:
4135626
Mfg#:
03C906051F
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2524958 - 054905377G - Knock Sensor - Blue Connector - Priced Each - Detects engine ping for timing adjustment - MTC - Audi Volkswagen

Detects engine ping for timing adjustment affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to VIN 8D-X-260000, split is in the 1999 model year

Brand:
MTC - Corporate Logo
ES#:
2524958
Mfg#:
054905377G
Ships in 9 Business Days
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4057416 - 4H0959126B - A/C Pressure Switch - Prevents excess pressure from building within the system - ACM - Audi

Prevents excess pressure from building within the system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ACM - Corporate Logo
ES#:
4057416
Mfg#:
4H0959126B
Back Ordered
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2899092 - 4A0121301 - Radiator Cooling Fan - Attached to fan clutch and driven by the engine - Vemo - Audi

Attached to fan clutch and driven by the engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2899092
Mfg#:
4A0121301
Special Order: No Guaranteed ETA
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4414393 - 06L109311 - Fuel Pump Cam Follower - Recommended to be replaced when replacing fuel pump. - Vemo Q+ - Audi Volkswagen Porsche

Recommended to be replaced when replacing fuel pump. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo Q+ - Corporate Logo
ES#:
4414393
Mfg#:
06L109311
Special Order: No Guaranteed ETA
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#7240 - 078133343A - Adjustable Clamp - 62mm adjustable clamp - Genuine Volkswagen Audi - Audi

62mm adjustable clamp affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
7240
Mfg#:
078133343A
Ships in 3 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.

$18.00

This product was last offered at the strikethrough price on
06-24-2026

$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2718703 - 06D109611H - Exhaust Valve - Priced Each - A sodium filled valve - Osvat - Audi Volkswagen

A sodium filled valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Osvat - Corporate Logo
ES#:
2718703
Mfg#:
06D109611H
Back Ordered
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#466956 - N0245076 - Spring Clamp (32.5x9x0.5) - Priced Each  - Spring clamp used in various areas on your European vehicle - Genuine Volkswagen Audi - Audi

Spring clamp used in various areas on your European vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures upper radiator hose to the radiator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
466956
Mfg#:
N0245076
Ships in 2 Business Days
29% off MSRP

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

$11.25

This product was last offered at the strikethrough price on
06-24-2026

$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4220540 - 06E121119B - Thermostat Gasket - Ensure a proper seal when installing your new thermostat - Victor Reinz - Audi

Ensure a proper seal when installing your new thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
4220540
Mfg#:
06E121119B
Ships in 3 Business Days
$8.99

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

$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2537040 - GDEAU18T - Racing Valve Guide - Priced Each - Made from manganese bronze - Supertech - Audi Volkswagen

Made from manganese bronze affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supertech - Corporate Logo
ES#:
2537040
Mfg#:
GDEAU18T
Ships in 8 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3678210 - 8K0121268C - Radiator Mounting Bracket Bushing - Priced Each - Bushing located below the lower radiator mounting bracket - Rein - Audi

Bushing located below the lower radiator mounting bracket 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#:
3678210
Mfg#:
8K0121268C
Ships in 1 day
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#285089 - 079311327A - Wrist Pin Lock Ring - Priced Each - Secures the wrist pin in the piston head - Genuine Volkswagen Audi - Audi

Secures the wrist pin in the piston head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
285089
Mfg#:
079311327A
Ships in 6 Business Days
$3.99 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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