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Audi S4 Engine Parts & Accessories

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Voltage Regulator

ES#280125 - 06B903803B - Voltage Regulator - Located on the rear of the alternator - Genuine Volkswagen Audi - Audi Volkswagen

Located on the rear of the alternator For vehicles with Valeo alternator only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280125
Mfg#:
06B903803B
Ships in 4 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.

$420.99

This product was last offered at the strikethrough price on
08-31-2026

$368.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Stem Seal - Priced Each

ES#274317 - 036109675A - Valve Stem Seal - Priced Each - Seals the valve stem in the cylinder head. 6mm - Genuine Volkswagen Audi - Audi Volkswagen

Seals the valve stem in the cylinder head. 6mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274317
Mfg#:
036109675A
In Stock
3% off MSRP

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

$23.78

This product was last offered at the strikethrough price on
11-05-2026

$22.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Drain Plug With Sealing Washer

ES#4939994 - N91167901 - Oil Drain Plug With Sealing Washer - Includes the crush washer. M14x1.5 - Bremmen Parts - Audi Volkswagen

Includes the crush washer. M14x1.5 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4939994
Mfg#:
N91167901
Ships on Dec 24, 2026
ON SALE!
$3.74 USD
Free Shipping
on orders $49 and up

Intake Manifold Gasket Set

ES#2594554 - 078129717NKT - Intake Manifold Gasket Set - Includes the left and right intake gaskets - Elring - Audi

Includes the left and right intake gaskets 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2594554
Mfg#:
078129717NKT
In Stock
$8.99

This product was last offered at the strikethrough price on
10-21-2026

$8.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit W/ Tensioner

ES#2678391 - 06E903137TKT - Accessory Belt Kit W/ Tensioner - Keep your accessories running properly with a new tensioner and drive belt - Genuine Volkswagen Audi - Audi

Keep your accessories running properly with a new tensioner and drive belt From the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2678391
Mfg#:
06E903137TKT
Ships in 1 day
$371.99

This product was last offered at the strikethrough price on
10-26-2026

$365.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

PIPE

ES#4761048 - 06M145673DT - PIPE - Genuine Volkswagen Audi - Audi

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4761048
Mfg#:
06M145673DT
In Stock
Limited Qty Sale
$201.99

This product was last offered at the strikethrough price on
08-24-2026

$182.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Sensor O-Ring

ES#2953981 - 038103196 - Oil Level Sensor O-Ring - Seals oil level sensor to the oil pan - URO - Audi Volkswagen

Seals oil level sensor to the oil pan 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2953981
Mfg#:
038103196
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Hose Clamp Kit

ES#2766010 - 5574k19KT - Turbo Hose Clamp Kit - Includes all of the clamps for the turbo system hoses - ECS - Audi

Includes all of the clamps for the turbo system hoses 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2766010
Mfg#:
5574K19KT
In Stock
ON SALE! SAVE 30%
$86.99

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

$60.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Crankshaft Seal

ES#4689995 - 038103085E - Front Crankshaft Seal - Stop oil leaks and prevent internal engine damage. 35x48x10 - Bremmen Parts - Audi Volkswagen

Stop oil leaks and prevent internal engine damage. 35x48x10 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4689995
Mfg#:
038103085E
In Stock
ON SALE! SAVE 26%
$7.34

This product was last offered at the strikethrough price on
10-21-2026

$5.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe O-Ring - Priced Each

ES#471191 - N90925001 - Coolant Pipe O-Ring - Priced Each - Provides seal from metal to plastic cooling line end fitting. 17x3 - Genuine Volkswagen Audi - Audi

Provides seal from metal to plastic cooling line end fitting. 17x3

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471191
Mfg#:
N90925001
In Stock
17% off MSRP

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

$5.99

This product was last offered at the strikethrough price on
11-05-2026

$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum pump gasket

ES#280935 - 06E145417A - Vacuum pump gasket - Seals the vacuum pump to the cylinder head - Genuine Volkswagen Audi - Audi Volkswagen

Seals the vacuum pump to the cylinder head

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280935
Mfg#:
06E145417A
Ships in 1 day
16% off MSRP

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

$30.99

This product was last offered at the strikethrough price on
08-13-2026

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

Coolant Pipe Gasket

ES#3641021 - WHT007920 - Coolant Pipe Gasket - Replacement gasket for your coolant pipes - Genuine Volkswagen Audi - Audi

Replacement gasket for your coolant pipes

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3641021
Mfg#:
WHT007920
In Stock
$5.75 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#252441 - 8E0121070B - Radiator Hose - Upper - Includes quick disconnect piece - Feed Hose - Genuine Volkswagen Audi - Audi

Includes quick disconnect piece - Feed Hose

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
252441
Mfg#:
8E0121070B
Ships in 3 Business Days
13% off MSRP

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

$416.99

This product was last offered at the strikethrough price on
08-31-2026

$361.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Condenser

ES#4770467 - 8W0816421H - A/C Condenser - Restore that ice cold A/C! - Nissens - Audi

Restore that ice cold A/C! We Price Match - Give Us A Call or Chat!

Brand:
Nissens - Corporate Logo
ES#:
4770467
Mfg#:
8W0816421H
Ships in 6 Business Days
$359.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump

ES#2642197 - 8E0965559 - Auxiliary Water Pump - Additional electric water pump - Hella - Audi

Additional electric water pump

Brand:
Hella - Corporate Logo
ES#:
2642197
Mfg#:
8E0965559
Ships in 1 day
$179.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Housing Cap

ES#3186737 - 06M115311E - Oil Filter Housing Cap - Replace your cracked or broken piece - Genuine Volkswagen Audi - Audi

Replace your cracked or broken piece

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3186737
Mfg#:
06M115311E
Ships in 3 Business Days
14% off MSRP

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

$138.99

This product was last offered at the strikethrough price on
08-31-2026

$119.99 USD
Free Shipping
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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