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Audi S4 Engine Parts & Accessories

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affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FAE - Corporate Logo
ES#:
3624972
Mfg#:
06E905163
Ships on Jul 21, 2026
$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3419829 - 058905161B - Hall Sender - Priced Each - Measures cam position and relays it to the ECU - Meyle - Audi Volkswagen

Measures cam position and relays it to the ECU 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#:
3419829
Mfg#:
058905161B
Ships on Nov 4, 2026
$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#442061 - 8E1907354A - ECU Housing Retainer - Secondary retainer for ECU cover - Genuine Volkswagen Audi - Audi

Secondary retainer for ECU cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
442061
Mfg#:
8E1907354A
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3462911 - 035103245A - Bleeder Valve - Located under the intake manifold - Kayser - Audi Volkswagen

Located under the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Kayser - Corporate Logo
ES#:
3462911
Mfg#:
035103245A
Ships in 1-2 days
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3449329 - N90136802 - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat - Victor Reinz - Audi BMW Volkswagen

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#:
3449329
Mfg#:
N90136802
In Stock
$3.99

This product was last offered at the strikethrough price on
03-15-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3521632 - 06E905163 - Camshaft Impulse Sensor - Priced Each - Keep your engine running strong - Holstein - Audi

Keep your engine running strong affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Left side cam position sensor

Brand:
Holstein - Corporate Logo
ES#:
3521632
Mfg#:
06E905163
Ships in 2 Business Days
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2707805 - 034198025F - Valve Cover Gasket - Set - Stop Slow Oil Leaks - Victor Reinz - Audi

Stop Slow Oil Leaks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
2707805
Mfg#:
034198025F
Ships in 1-2 days
$38.99

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

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#361667 - 4A0121140 - radiator drain plug - Allows you to empty your radiator of coolant with ease - Genuine Volkswagen Audi - Audi

Allows you to empty your radiator of coolant with ease affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
361667
Mfg#:
4A0121140
Ships in 5 Business Days
12% off MSRP

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

$42.99

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

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4623584 - 06E903341G - Accessory Belt Idler Pulley - Also referred to as the 'relay roller' - Hamburg Tech - 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:
Hamburg Tech - Corporate Logo
ES#:
4623584
Mfg#:
06E903341G
Ships in 2 Business Days
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Located inside the cylinder head and allows for valve movement affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
2635814
Mfg#:
058109633
Back Ordered
5% off MSRP

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

$19.99

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

$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3149391 - 069121113 - Thermostat (87C) - Prevent overheating and premature engine wear. Includes O-ring - Rein - Audi Volkswagen

Prevent overheating and premature engine wear. Includes O-ring 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#:
3149391
Mfg#:
069121113
Ships in 4 Business Days
$9.35 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3142691 - 06A145710P - Diverter Valve - Cure the boost leak and restore power - Hudson - Audi Volkswagen

Cure the boost leak and restore power affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hudson - Corporate Logo
ES#:
3142691
Mfg#:
06A145710P
Ships in 1-2 days
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1435 - 069121113 - Thermostat (87C) - Prevent overheating and premature engine wear - Wahler - Audi

Prevent overheating and premature engine wear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wahler - Corporate Logo
ES#:
1435
Mfg#:
069121113
Ships on Jul 21, 2026
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3647468 - ST-AIVN-1106S - Supertech Stainless Intake Valve - 1.8T/2.7T - Priced Each  - +1mm oversized valve head diameter, single groove keeper setup for high RPM use - Supertech - Audi Volkswagen

+1mm oversized valve head diameter, single groove keeper setup for high RPM use affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*Valves priced individually - For 1.8T - qty 12 needed / For 2.7T - qty 18 needed - Please see long description for additional valve seal/keeper informa

Brand:
Supertech - Corporate Logo
ES#:
3647468
Mfg#:
ST-AIVN-1106S
Back Ordered
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2812882 - 026103085D - Camshaft/Crankshaft Seal - Priced Each - Stop oil leaks and prevent internal damage. 47x10 - Hamburg Tech - Audi Volkswagen

Stop oil leaks and prevent internal damage. 47x10 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#:
2812882
Mfg#:
026103085D
Ships in 2 Business Days
$4.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3412038 - 4A0121403 - Coolant Expansion Tank - Replace cracked tanks. - Hudson - Audi

Replace cracked tanks. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hudson - Corporate Logo
ES#:
3412038
Mfg#:
4A0121403
Ships in 1-2 days
$36.00 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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Manufacturer names and/or part numbers are used only for identification purposes.

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