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Audi A4 Engine Parts & Accessories

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Audi B9 A4/A5 ECU Cover - Matte Black

ES#3739793 - 028799ECS01 - Audi B9 A4/A5 ECU Cover - Matte Black - Compliment your engine bay and hide away the exposed ECU - ECS - Audi

Compliment your engine bay and hide away the exposed ECU 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3739793
Mfg#:
028799ECS01
In Stock
ON SALE! SAVE 25%
$103.99

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

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete 2.0T Camshaft Replacement Kit - Stage 1

ES#2081104 - 06F198101B - Complete 2.0T Camshaft Replacement Kit - Stage 1 - Complete kit with all parts needed to replace a defective camshaft - Assembled By ECS - Audi Volkswagen

Complete kit with all parts needed to replace a defective camshaft 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2081104
Mfg#:
06F198101B
In Stock
ON SALE!
$606.99

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

$553.72 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Bolt - Price Each

ES#471936 - N91118902 - Bolt - Price Each - Bolt for securing crank shaft/main bearings, ten required, m10x80 - Genuine Volkswagen Audi - Audi Volkswagen

Bolt for securing crank shaft/main bearings, ten required, m10x80

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471936
Mfg#:
N91118902
In Stock
33% off MSRP

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

$9.58

This product was last offered at the strikethrough price on
09-20-2026

$6.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Piston Cooling Nozzle Control Valve (N522)

ES#4766167 - 06K115243AB - Piston Cooling Nozzle Control Valve (N522) - Controls oil flow to oil spray nozzles - Bremmen Parts - Audi Volkswagen

Controls oil flow to oil spray nozzles 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766167
Mfg#:
06K115243AB
In Stock
ON SALE! SAVE 20%
$87.99

This product was last offered at the strikethrough price on
08-11-2026

$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Ignition Service Kit - With Service Tools

ES#4349872 - ms100192kt3ktKT1 - Performance Ignition Service Kit - With Service Tools - Features APR Upgraded Ignition Coils and Brisk Silver Racing ER12s plugs, ensuring a stronger and more consistent spark! - Assembled By ECS - Audi Volkswagen

Features APR Upgraded Ignition Coils and Brisk Silver Racing ER12s plugs, ensuring a stronger and more consistent spark! 10X Entries Into Our F80 M3 Sweepstakes
CARB certified for sale in all 50 states

Brand:
Assembled By ECS - Corporate Logo
ES#:
4349872
Mfg#:
MS100192KT3KTKT1
EO#:
D-783-5
In Stock
ON SALE!
$367.99

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

$366.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Catch Can Kit

ES#2848072 - CTSCCB8.5TFSi - Billet Catch Can Kit - Reduce oil deposits that lower performance - CTS - Audi

Reduce oil deposits that lower performance From the 2013 model year

Brand:
CTS - Corporate Logo
ES#:
2848072
Mfg#:
CTSCCB8.5TFSI
Ships in 7 Business Days
$499.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

K04 0015 Turbocharger

ES#3364 - 058145703KO4 - K04 0015 Turbocharger - Great bolt on performance upgrade that can be used with or without specific programming - BorgWarner - Audi Volkswagen

Great bolt on performance upgrade that can be used with or without specific programming

Brand:
BorgWarner - Corporate Logo
ES#:
3364
Mfg#:
058145703KO4
Back Ordered
$1831.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Forge Electronic Recirculating Diverter Valve (E-DV) - Audi B9 A4 2.0T / S4 3.0T / VW MK8 2.0T

ES#5375296 - FMEDV106R - Forge Electronic Recirculating Diverter Valve (E-DV) - Audi B9 A4 2.0T / S4 3.0T / VW MK8 2.0T - Next generation electronically actuated diverter valve engineered for modern turbo engines with a true plug-and-play design! - Forge - Audi Volkswagen

Next generation electronically actuated diverter valve engineered for modern turbo engines with a true plug-and-play design! For vehicles from the 2021 model year only.

Brand:
Forge - Corporate Logo
ES#:
5375296
Mfg#:
FMEDV106R
Ships in 7 Business Days
ON SALE! SAVE 10%
$379.99

This product was last offered at the strikethrough price on
09-18-2026

$341.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Forge Electronic Atmospheric Dump Valve (E-DV) - VW/AUDI 2.0T

ES#5375361 - FMEDV103A - Forge Electronic Atmospheric Dump Valve (E-DV) - VW/AUDI 2.0T - Next generation electronically actuated diverter valve engineered for modern turbo engines with a true plug-and-play design! - Forge - Audi Volkswagen

Next generation electronically actuated diverter valve engineered for modern turbo engines with a true plug-and-play design!

Brand:
Forge - Corporate Logo
ES#:
5375361
Mfg#:
FMEDV103A
Ships on Oct 8, 2026
ON SALE! SAVE 10%
$379.99

This product was last offered at the strikethrough price on
09-18-2026

$341.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Motul Oil Service Kit (5w-40) - With Magnetic Drain Plug

ES#4006933 - 06L115562KT13 - Motul Oil Service Kit (5w-40) - With Magnetic Drain Plug - Includes Hengst oil filter, Motul 5W-40 Synthetic engine oil and ECS Magnetic Drain Plug - Assembled By ECS - Audi Volkswagen

Includes Hengst oil filter, Motul 5W-40 Synthetic engine oil and ECS Magnetic Drain Plug 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4006933
Mfg#:
06L115562KT13
In Stock
ON SALE!
$134.58

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

$129.77 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Performance Stainless 2.5" Downpipe

ES#3175270 - 251126R - Performance Stainless 2.5" Downpipe - High flow, stainless downpipe kit to be used with factory exhaust - Techtonics Tuning - Audi

High flow, stainless downpipe kit to be used with factory exhaust Fits manual transmission models only - To be used with factory exhaust

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175270
Mfg#:
251126R
Ships in 4 Business Days
$286.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#2129933 - 06F121011 - Water Pump - Featuring a metal impeller - Geba - Audi Volkswagen

Featuring a metal impeller

Brand:
Geba - Corporate Logo
ES#:
2129933
Mfg#:
06F121011
In Stock
$96.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#4818410 - 037906283C - Solenoid Valve - Priced Each - Common cure for DTC P0441 - Bremmen Parts - Audi Volkswagen

Common cure for DTC P0441 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818410
Mfg#:
037906283C
In Stock
ON SALE! SAVE 15%
$45.99

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

$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Street Density Line Transmission Mount - Priced Each

ES#2951985 - 034-509-4046sd - Street Density Line Transmission Mount - Priced Each - Increase performance and durability without sacrificing comfort - 034Motorsport - Audi

Increase performance and durability without sacrificing comfort 2X Entries Into Our F80 M3 Sweepstakes
Fits automatic transmission left and right side, fits manual transmission right side only

Brand:
034Motorsport - Corporate Logo
ES#:
2951985
Mfg#:
034-509-4046SD
In Stock
$96.00

This product was last offered at the strikethrough price on
05-01-2026

$75.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body

ES#3410507 - 06F133062T - Throttle Body - Includes the throttle sensor - Pierburg - Audi Volkswagen

Includes the throttle sensor

Brand:
Pierburg - Corporate Logo
ES#:
3410507
Mfg#:
06F133062T
In Stock at Vendor
$360.99

This product was last offered at the strikethrough price on
08-20-2026

$359.65 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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