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Audi S4 Engine Parts & Accessories

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VPS Intercooler To Throttle Charge Pipe - With BOV

ES#4505751 - b9cpbov2017KT - VPS Intercooler To Throttle Charge Pipe - With BOV - Upgraded charge pipe kit for use with blow off valve included. - Verstarkt Performance Systems - Audi

Upgraded charge pipe kit for use with blow off valve included. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Verstarkt Performance Systems - Corporate Logo
ES#:
4505751
Mfg#:
B9CPBOV2017KT
Ships on Sep 17, 2026
ON SALE! SAVE 48%
$324.99

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

$170.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AFK Valve with connecting tube (14.5mm)

ES#280899 - 06E133781B - AFK Valve with connecting tube (14.5mm) - Keep your engine running smooth - Also considered EVAP Purge valve, or 'N80' valve - Genuine Volkswagen Audi - Audi

Keep your engine running smooth - Also considered EVAP Purge valve, or 'N80' valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280899
Mfg#:
06E133781B
Ships in 3 Business Days
8% off MSRP

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

$131.99

This product was last offered at the strikethrough price on
06-19-2026

$120.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#4164713 - B6S4RESONATED - Cat-Back Exhaust System - Resonated - 2.25" stainless steel with your choice of tip style - Milltek Sport - Audi

2.25" stainless steel with your choice of tip style affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4164713
Mfg#:
B6S4RESONATED
Back Ordered
Starting at $1685.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet R1 Diverter Valve - Pair

ES#4039652 - dv100001KT - Billet R1 Diverter Valve - Pair - Less maintenance, more boost. Kit includes two valves for twin-turbo applications. - APR - Audi Porsche

Less maintenance, more boost. Kit includes two valves for twin-turbo applications. Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4039652
Mfg#:
DV100001KT
Ships on Jul 24, 2026
Auto Notify
$561.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Gasket Set - Priced Each

ES#259936 - 078198025 - Valve Cover Gasket Set - Priced Each - Fits the left and right side - Elring - Audi Volkswagen

Fits the left and right side 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:
Elring - Corporate Logo
ES#:
259936
Mfg#:
078198025
In Stock
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Gasket - Left

ES#2737552 - 06E103483Q - Valve Cover Gasket - Left - Stop oil leaks and prevent internal engine damage - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2737552
Mfg#:
06E103483Q
In Stock
7% off MSRP

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

$78.34

This product was last offered at the strikethrough price on
02-23-2026

$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Fuel Pressure Regulator

ES#4158836 - 034-106-5015 - Adjustable Fuel Pressure Regulator - Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 3.3-5 BAR - 034Motorsport - Audi Volkswagen

Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 3.3-5 BAR affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4158836
Mfg#:
034-106-5015
In Stock
$129.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

OEM Audi 2.9TT/4.0TT Direct Fuel Injector - Priced Each

ES#5397015 - 06m906036aq - OEM Audi 2.9TT/4.0TT Direct Fuel Injector - Priced Each - Maximum Power on Accompanying Stage 3 Tuning - Genuine Volkswagen Audi - Audi

Maximum Power on Accompanying Stage 3 Tuning affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5397015
Mfg#:
06M906036AQ
In Stock
$277.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Water Pipe

ES#4818463 - 06E121083N - Upper Water Pipe - Connects supply/return cooling lines to the supercharger - Bremmen Parts - Audi

Connects supply/return cooling lines to the supercharger affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818463
Mfg#:
06E121083N
In Stock
ON SALE! SAVE 21%
$104.99

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

$83.22 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Belt

ES#3980786 - 7PK1300 - Supercharger Belt - Replace your cracked or worn belt - Bando - Audi Volkswagen

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

Brand:
Bando - Corporate Logo
ES#:
3980786
Mfg#:
7PK1300
In Stock
$23.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
This product has been superseded to ES#4046596

Coolant Temperature Sensor - 2 Pin

ES#257175 - 06A919501A - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings - Genuine Volkswagen Audi - Audi Volkswagen

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#:
257175
Mfg#:
06A919501A
In Stock
ON SALE!
$48.43

This product was last offered at the strikethrough price on
06-15-2026

$46.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supertech Valve Spring & Titanium Retainer Set

ES#4780587 - 034-201-8022 - Supertech Valve Spring & Titanium Retainer Set - Enhancing the power output of your 3.0T - Supertech - Audi

Enhancing the power output of your 3.0T affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supertech - Corporate Logo
ES#:
4780587
Mfg#:
034-201-8022
Ships in 2 Business Days
$828.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Control Module (600W)

ES#3176292 - 8K0959501G - Radiator Fan Control Module (600W) - Keep your cooling system operating properly - Vemo - Audi

Keep your cooling system operating properly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
3176292
Mfg#:
8K0959501G
In Stock
$551.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VWR Billet Fuel Filler Cap - Screw-In Type

ES#4447602 - VWR190000 - VWR Billet Fuel Filler Cap - Screw-In Type - Beautifully over-engineered in customary RacingLine fashion to give an exquisite feel and beautiful appearance - Make refueling a pleasure! - Racingline - Audi Volkswagen

Beautifully over-engineered in customary RacingLine fashion to give an exquisite feel and beautiful appearance - Make refueling a pleasure! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with threaded screw-in style gas caps only. Please confirm prior to ordering.

Brand:
Racingline - Corporate Logo
ES#:
4447602
Mfg#:
VWR190000
Ships in 2 Business Days
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Dynamic+ Supercharger Belt - 1310mm

ES#5388894 - 034-145-Z058 - 034Motorsport Dynamic+ Supercharger Belt - 1310mm - Precision-manufactured to strict OEM dimensional specifications with advanced materials. High heat resistance to ensure long-term durability in extreme environments. - 034Motorsport - Audi

Precision-manufactured to strict OEM dimensional specifications with advanced materials. High heat resistance to ensure long-term durability in extreme environments. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
5388894
Mfg#:
034-145-Z058
In Stock
$28.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

M11 Head Stud Kit EA839 2.9T/3.0T

ES#5446956 - 034-201-5031 - M11 Head Stud Kit EA839 2.9T/3.0T - Designed to maintain reliable clamping force under sustained heat and load, addressing the limitations of OE torque-to-yield head bolts that can stretch and degrade at higher power levels. - 034Motorsport - Audi

Designed to maintain reliable clamping force under sustained heat and load, addressing the limitations of OE torque-to-yield head bolts that can stretch and degrade at higher power levels. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
5446956
Mfg#:
034-201-5031
In Stock
$550.00 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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