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

2.0T Coil Pack Conversion Kit - Stage 2

ES#2713402 - 002598ECS11KT - 2.0T Coil Pack Conversion Kit - Stage 2 - Includes anodized black conversion plate -w- red 2.0T coils and red hold down kit - ECS - Audi Volkswagen

Includes anodized black conversion plate -w- red 2.0T coils and red hold down kit 10X Entries For Our 25th Anniversary Sweepstakes!

Fits ATW & AWM engine code models only

Brand:
ECS - Corporate Logo
ES#:
2713402
Mfg#:
002598ECS11KT
In Stock
ON SALE!
$366.99

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

$355.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#436137 - 8E0121049L - Radiator Hose - Lower - Connects the lower radiator port to the expansion tank and thermostat housing - Genuine Volkswagen Audi - Audi

Connects the lower radiator port to the expansion tank and thermostat housing

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
436137
Mfg#:
8E0121049L
Ships in 2 Business Days
$182.99

This product was last offered at the strikethrough price on
05-04-2026

$177.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cooling Flange Replacement Kit

ES#2602901 - 06B121132EKT1 - Cooling Flange Replacement Kit - Cure the common coolant leak coming from the back of your engine compartment - Assembled By ECS - Audi

Cure the common coolant leak coming from the back of your engine compartment 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602901
Mfg#:
06B121132EKT1
In Stock
ON SALE! SAVE 25%
$64.99

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

$49.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Upper Hose

ES#450265 - 8K0121081AB - Expansion Tank Upper Hose - Overflow relief hose for the radiator - Genuine Volkswagen Audi - Audi

Overflow relief hose for the radiator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450265
Mfg#:
8K0121081AB
In Stock
28% off MSRP

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

$60.00

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

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGR Valve - Priced Each

ES#2681440 - 06B131101K - EGR Valve - Priced Each - Also known as the 'combi valve' - Pierburg - Audi Volkswagen

Also known as the 'combi valve'

Brand:
Pierburg - Corporate Logo
ES#:
2681440
Mfg#:
06B131101K
Ships in 1 day
$157.55 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Alternator

ES#3248333 - 06L903024J - Alternator - Brand new unit with no core charge. - Genuine Volkswagen Audi - Audi

Brand new unit with no core charge. For models with engine code CYMC

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3248333
Mfg#:
06L903024J
Ships in 1 day
5% off MSRP

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

$1492.99

This product was last offered at the strikethrough price on
08-06-2026

$1416.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump Gasket

ES#281327 - 06H103121J - Vacuum Pump Gasket - Recommended to be replaced when replacing vacuum pump. - Genuine Volkswagen Audi - Audi Volkswagen

Recommended to be replaced when replacing vacuum pump.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281327
Mfg#:
06H103121J
In Stock
22% off MSRP

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

$18.98

This product was last offered at the strikethrough price on
08-06-2026

$14.75 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

SP Series Cold Air Intake - Black

ES#3086223 - SP3080BLK - SP Series Cold Air Intake - Black - Better airflow for more power - Injen - Audi

Better airflow for more power CARB certified for sale in all 50 states

Brand:
Injen - Corporate Logo
ES#:
3086223
Mfg#:
SP3080BLK
EO#:
D-476-8
In Stock at Vendor
$471.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Replacement Kit

ES#3658445 - 3b0121321ktKT2 - Coolant Expansion Tank Replacement Kit - Everything you need to replace your faded, cracked, or leaky expansion tank! - Assembled By ECS - Audi

Everything you need to replace your faded, cracked, or leaky expansion tank! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3658445
Mfg#:
3B0121321KTKT2
In Stock
ON SALE! SAVE 18%
$61.99

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

$50.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly

ES#280429 - 06D121111G - Thermostat Assembly - Includes sealing o-ring - Genuine Volkswagen Audi - Audi

Includes sealing o-ring

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280429
Mfg#:
06D121111G
In Stock
$128.64

This product was last offered at the strikethrough price on
08-06-2026

$128.61 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Silver Bullet Throttle Body Spacer Kit

ES#3979036 - 46-39002 - Silver Bullet Throttle Body Spacer Kit - aFE in-house Dyno testing resulted in max gains up to +10 HP and +14 lbs. x ft. of torque - AFE - Audi

aFE in-house Dyno testing resulted in max gains up to +10 HP and +14 lbs. x ft. of torque

Brand:
AFE - Corporate Logo
ES#:
3979036
Mfg#:
46-39002
Ships in 4 Business Days
ON SALE! SAVE 12%
$145.99

This product was last offered at the strikethrough price on
05-27-2026

$128.58 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8/B8.5 A4 Carbon Fiber Left Side Engine Bay Cover

ES#3570283 - 022738ecs02KT - Audi B8/B8.5 A4 Carbon Fiber Left Side Engine Bay Cover - Cover up unsightly under hood components with carbon fiber style! - ECS - Audi

Cover up unsightly under hood components with carbon fiber style! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3570283
Mfg#:
022738ECS02KT
Ships on Aug 24, 2026
Auto Notify
ON SALE! SAVE 15%
$236.99

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

$201.44 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Replacement Kit

ES#2593538 - 8K0121403QKT - Coolant Expansion Tank Replacement Kit - Everything you need to replace your faded, cracked, or leaky expansion tank! - Genuine Volkswagen Audi - Audi

Everything you need to replace your faded, cracked, or leaky expansion tank!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2593538
Mfg#:
8K0121403QKT
In Stock
$140.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Fuel Rail - black Finish

ES#2794185 - IEFUVA1BK - Billet Fuel Rail - black Finish - Performance 1 piece fuel rail with style - Integrated Engineering - Audi Volkswagen

Performance 1 piece fuel rail with style 5X Entries For Our 25th Anniversary Sweepstakes!

Requires 12mm injector extensions

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794185
Mfg#:
IEFUVA1BK
In Stock
$175.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Underdrive Crank Pulley Kit - Silver

ES#6140 - 06F198002SLV - Lightweight Underdrive Crank Pulley Kit - Silver - Bolt on way to reclaim lost horsepower - ECS - Audi

Bolt on way to reclaim lost horsepower 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
6140
Mfg#:
06F198002SLV
In Stock
ON SALE! SAVE 10%
$194.99

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

$175.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

PCV Breather Hose

ES#4872147 - 06J103221A - PCV Breather Hose - Connects PCV to the intake manifold - URO - Audi Volkswagen

Connects PCV to the intake manifold 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Up to the 2012 model year

Brand:
URO - Corporate Logo
ES#:
4872147
Mfg#:
06J103221A
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
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

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