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Audi S4 Engine Parts & Accessories

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Fuel Level Sensor - Right

Informs the instrument cluster of the tank's fuel level affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8E-6-265 831 - Split is in the 2006 model year

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
4057653
Mfg#:
8E0919673AT
Back Ordered
$241.99

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

$234.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#3463364 - 8E0121070B - Radiator Hose - Upper - Includes quick disconnect piece - Feed Hose - Hudson - Audi

Includes quick disconnect piece - Feed Hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hudson - Corporate Logo
ES#:
3463364
Mfg#:
8E0121070B
Ships in 1-2 days
$117.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

ES#3211792 - 06M919501 - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3211792
Mfg#:
06M919501
Ships in 2 Business Days
6% off MSRP

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

$50.00

This product was last offered at the strikethrough price on
01-07-2026

$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Forge Motorsport Recirculating Valve - Silver

ES#3980511 - FMDV13R-C - Forge Motorsport Recirculating Valve - Silver - Engineered to remedy the failure issues experienced with the OEM solenoid valves when the diaphragm or plastic piston fails - Forge - Audi

Engineered to remedy the failure issues experienced with the OEM solenoid valves when the diaphragm or plastic piston fails affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
3980511
Mfg#:
FMDV13R-C
Ships in 3 Business Days
ON SALE! SAVE 10%
$260.00

This product was last offered at the strikethrough price on
07-01-2026

$234.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Supply Line - Right

ES#252308 - 078145778B - Oil Supply Line - Right - Connects the oil distributor to the turbocharger - Original Equipment Supplier - Audi

Connects the oil distributor to the turbocharger affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
252308
Mfg#:
078145778B
Back Ordered
$240.99

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

$233.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#4056291 - 06E121111AL - Thermostat - Includes sealing gasket and housing - Vemo - Audi

Includes sealing gasket and housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
4056291
Mfg#:
06E121111AL
In Stock at Vendor
$120.99

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

$116.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#1692 - 1J0121321B - Expansion Tank Cap - Keep proper pressure in your coolant system - Febi - Audi Volkswagen Porsche

Keep proper pressure in your coolant system 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:
Febi - Corporate Logo
ES#:
1692
Mfg#:
1J0121321B
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Iridium Spark Plug

ES#4476254 - 101905631G - Iridium Spark Plug - 2X longer service life compared to standard copper plugs! - Denso - Audi

2X longer service life compared to standard copper plugs! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Denso - Corporate Logo
ES#:
4476254
Mfg#:
101905631G
In Stock at Vendor
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Piston Ring Set - Priced Each

ES#2158318 - 06E198151Q - Piston Ring Set - Priced Each - One set required per piston - Genuine Volkswagen Audi - Audi

One set required per piston affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2158318
Mfg#:
06E198151Q
Ships in 1-2 days
7% off MSRP

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

$249.99

This product was last offered at the strikethrough price on
02-26-2026

$232.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Belly Pan Installation Hardware Kit

ES#2581815 - 4A0805137KT - Front Belly Pan Installation Hardware Kit - Includes the necessary hardware to secure the belly pan to the vehicle - Assembled By ECS - Audi

Includes the necessary hardware to secure the belly pan to the vehicle 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#:
2581815
Mfg#:
4A0805137KT
Ships in 1-2 days
ON SALE! SAVE 25%
$153.99

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

$116.02 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Gasket - Left

ES#4044985 - 06E103483Q - Valve Cover Gasket - Left - Stop oil leaks and prevent internal engine damage - Victor Reinz - Audi

Stop oil leaks and prevent internal engine damage affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
4044985
Mfg#:
06E103483Q
In Stock at Vendor
$29.99

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

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Kevlar Reinforced Accessory/Supercharger Belt Kit W/ Tensioners

ES#4707954 - 06E903137T2KT - ECS Performance Kevlar Reinforced Accessory/Supercharger Belt Kit W/ Tensioners - Includes the tensioner assembly, ECS performance Kevlar reinforced accessory and supercharger belt, accessory and supercharger tensioners and hardware. - Assembled By ECS - Audi

Includes the tensioner assembly, ECS performance Kevlar reinforced accessory and supercharger belt, accessory and supercharger tensioners and hardware. 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#:
4707954
Mfg#:
06E903137T2KT
Ships on Aug 3, 2026
Auto Notify
ON SALE! SAVE 13%
$266.32

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

$231.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#2862424 - 06E117021G - Oil Cooler - Common source of undiscoverable coolant leaks - Nissens - Audi Volkswagen

Common source of undiscoverable coolant leaks We Price Match - Give Us A Call or Chat! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Nissens - Corporate Logo
ES#:
2862424
Mfg#:
06E117021G
In Stock at Vendor
$237.99

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

$230.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#2738757 - 079903137E - Accessory Belt - Replaces your cracked or worn belt - Continental - Audi

Replaces your cracked or worn belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2738757
Mfg#:
079903137E
In Stock
$26.99

This product was last offered at the strikethrough price on
05-18-2026

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Quad Ring Oil Filter Gasket

ES#3514764 - QR2 - Quad Ring Oil Filter Gasket - Replacement gasket for all K&P Engineering spin-on filters - K&P Engineering - Audi Volkswagen

Replacement gasket for all K&P Engineering spin-on filters affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
K&P Engineering - Corporate Logo
ES#:
3514764
Mfg#:
QR2
Ships in 7 Business Days
$2.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Intake Hose Kit - Red

ES#740 - tb756757red - Upper Intake Hose Kit - Red - Replaces both connecting hoses off of the 'Y' pipe - Samco - Audi

Replaces both connecting hoses off of the 'Y' pipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Samco - Corporate Logo
ES#:
740
Mfg#:
TB756757RED
Ships on Oct 1, 2026
$229.99 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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