Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi A4 Engine Parts & Accessories

Sort By
Filter By
Return to Top

Cooling System Refresh Kit - Level 2

ES#2608133 - 06B121121LKT - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! 10X Entries For Our 25th Anniversary Sweepstakes!
Engine code AWM from VIN 8D-X-500001, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608133
Mfg#:
06B121121LKT
Ships in 1 day
ON SALE!
$159.99

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

$152.06 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2608176 - 06C121111CKT2 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608176
Mfg#:
06C121111CKT2
Ships in 1 day
ON SALE!
$212.99

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

$200.60 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Tuning Timing Belt Kit - Ultimate Plus With Gates Racing Timing Belt

ES#2593570 - 078109487CKT - ECS Tuning Timing Belt Kit - Ultimate Plus With Gates Racing Timing Belt - Looking for the best timing belt kit on the market? Look no further than ECS Tuning. - Assembled By ECS - Audi

Looking for the best timing belt kit on the market? Look no further than ECS Tuning. 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8D-W-007798, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593570
Mfg#:
078109487CKT
Ships in 4 Business Days
ON SALE!
$538.46

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

$519.02 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Suction Pump Replacement Kit With Breather Hose

ES#2771220 - 058133753DKT3 - Suction Pump Replacement Kit With Breather Hose - Restore engine performance - Assembled By ECS - Audi

Restore engine performance 10X Entries For Our 25th Anniversary Sweepstakes!
From VIN 8E-4-000001, split is in the 2004 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2771220
Mfg#:
058133753DKT3
Ships in 1 day
ON SALE! SAVE 13%
$81.81

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

$71.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate Plus

ES#2137116 - 078198674-1 - ECS Tuning Timing Belt Kit - Ultimate Plus - The most comprehensive timing belt kit on the market! Includes cam locking tool. - Assembled By ECS - Audi

The most comprehensive timing belt kit on the market! Includes cam locking tool. 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8D-W-007798, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2137116
Mfg#:
078198674-1
Ships in 1 day
ON SALE! SAVE 13%
$625.99

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

$546.26 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#2608175 - 06C121111CKT - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensors with one kit! - Assembled By ECS - Audi

Replace your thermostat and temp sensors with one kit! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608175
Mfg#:
06C121111CKT
Ships in 1 day
ON SALE! SAVE 14%
$128.99

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

$110.46 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Complete Engine Mount Kit

ES#2587089 - 8D0199379AQKT - Complete Engine Mount Kit - Includes all mounts and hardware to reduce driveline vibrations - Assembled By ECS - Audi

Includes all mounts and hardware to reduce driveline vibrations 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2587089
Mfg#:
8D0199379AQKT
Ships in 1 day
ON SALE!
$320.99

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

$317.64 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Installation Kit

ES#3659114 - 8K0121101MKT1 - Radiator Installation Kit - Everything you need to install your new radiator - Assembled By ECS - Audi

Everything you need to install your new radiator 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3659114
Mfg#:
8K0121101MKT1
Ships in 1 day
ON SALE!
$342.99

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

$338.74 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Expansion Tank Replacement Kit W/ R8 Coolant Cap

ES#2649684 - 8E0121403AKT3 - Expansion Tank Replacement Kit W/ R8 Coolant Cap - Install a brand new expansion tank with a new R8 polished aluminum cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new R8 polished aluminum cap and hardware 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2649684
Mfg#:
8E0121403AKT3
Ships in 1 day
$346.44 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate

ES#2681618 - 078109479BKT1 - ECS Tuning Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job. Includes ECS cam locking tool - Assembled By ECS - Audi

Everything you need for a complete timing belt job. Includes ECS cam locking tool 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8D-W-007798, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2681618
Mfg#:
078109479BKT1
Ships in 1 day
ON SALE! SAVE 19%
$600.99

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

$489.36 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Engine Cover Kit

ES#2587403 - 06D115611AKT - Engine Cover Kit - Includes all caps located in the engine bay - Assembled By ECS - Audi

Includes all caps located in the engine bay 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8E-5-425000, split is in the 2005 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2587403
Mfg#:
06D115611AKT
Ships in 1 day
$161.99

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

$160.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Radiator Installation Kit

ES#3663755 - 8k0805201KT - Radiator Installation Kit - Everything you need to install your new radiator - Assembled By ECS - Audi

Everything you need to install your new radiator 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3663755
Mfg#:
8K0805201KT
Ships in 1 day
ON SALE!
$368.99

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

$358.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

EGR Valve Replacement Kit

ES#2766067 - 078131120KKT1 - EGR Valve Replacement Kit - Complete gasket and hardware to replace the EGR valve - Assembled By ECS - Audi

Complete gasket and hardware to replace the EGR valve 10X Entries For Our 25th Anniversary Sweepstakes!
Engine code AWM

Brand:
Assembled By ECS - Corporate Logo
ES#:
2766067
Mfg#:
078131120KKT1
Ships in 1 day
ON SALE!
$57.99

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

$56.16 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGR Valve Replacement Kit

ES#2766069 - 078131120KKT3 - EGR Valve Replacement Kit - Complete gasket and hardware to replace the EGR valve - Assembled By ECS - Audi

Complete gasket and hardware to replace the EGR valve 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2766069
Mfg#:
078131120KKT3
Ships in 1 Business Day
ON SALE! SAVE 20%
$62.99

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

$50.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 3

ES#2608178 - 06C121085HKT - Cooling System Refresh Kit - Level 3 - Replace critical cooling system components and perform a proper coolant system flush! - Assembled By ECS - Audi

Replace critical cooling system components and perform a proper coolant system flush! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608178
Mfg#:
06C121085HKT
Ships in 1 day
ON SALE!
$428.99

This product was last offered at the strikethrough price on
06-18-2026

$426.68 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Engine Cover Kit

ES#2587401 - 06C103485NKT - Engine Cover Kit - Includes all caps located in the engine bay - Assembled By ECS - Audi

Includes all caps located in the engine bay 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8E-5-425000, split is in the 2005 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2587401
Mfg#:
06C103485NKT
Ships in 1 day
$161.99

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

$160.99 USD
Free Shipping
This product is lifetime replacement eligible Partial 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

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings