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 Cooling Parts

Sort By
Filter By
Return to Top

Water Pump

ES#3149400 - 06C121004H - Water Pump - Featuring a metal impeller and includes a metal gasket - Rein - Audi

Featuring a metal impeller and includes a metal gasket 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3149400
Mfg#:
06C121004H
Back Ordered
$100.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upper Radiator Hose

ES#3463367 - 8E0121101 - Upper Radiator Hose - Connects the upper radiator to the expansion tank and thermostat housing - Hudson - Audi

Connects the upper radiator to the expansion tank and thermostat housing

Brand:
Hudson - Corporate Logo
ES#:
3463367
Mfg#:
8E0121101
Ships in 1-2 days
$50.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe O-Ring - Priced Each

ES#3419348 - N90765301 - Coolant Pipe O-Ring - Priced Each - Provides seal from metal to plastic cooling line end fitting. 32X4 - Rein - Audi Volkswagen

Provides seal from metal to plastic cooling line end fitting. 32X4 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3419348
Mfg#:
N90765301
Ships in 1-2 days
$1.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#766 - 06A121011L - Water Pump - Featuring a metal impeller - Graf - Audi Volkswagen

Featuring a metal impeller

Brand:
Graf - Corporate Logo
ES#:
766
Mfg#:
06A121011L
In Stock at Vendor
$49.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#3199837 - 06H121026BA - Water Pump - Features plastic impeller and includes gasket - URO - Audi Volkswagen

Features plastic impeller and includes gasket 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3199837
Mfg#:
06H121026BA
Ships in 1 Business Day
$49.99 USD
Free Shipping
on orders $49 and up

Oil Cooler Hose - Return

ES#4326735 - 058121058B - Oil Cooler Hose - Return - Connects the oil cooler to the hard water tube - Meyle - Audi Volkswagen

Connects the oil cooler to the hard water tube 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4326735
Mfg#:
058121058B
Ships in 1 Business Day
$10.99

This product was last offered at the strikethrough price on
04-21-2026

$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Grommet Cap - Priced Each

ES#450312 - 8K0129697 - Grommet Cap - Priced Each - Piece that the rubber grommet sits into on the bracket - Genuine Volkswagen Audi - Audi

Piece that the rubber grommet sits into on the bracket

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450312
Mfg#:
8K0129697
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#3463366 - 8E0121101AJ - Radiator Hose - Upper - Runs from the radiator to the water pipe and expansion tank. - Hudson - Audi

Runs from the radiator to the water pipe and expansion tank. From sedan models from VIN 8E-5-125001, and cabriolet models from VIN 8H-5-005601 - Splits are in the 2005 model year

Brand:
Hudson - Corporate Logo
ES#:
3463366
Mfg#:
8E0121101AJ
Ships in 3 Business Days
$99.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core

ES#2696113 - 8D1819030B - Heater Core - Stop coolant loss and cure a fogged windshield - ACM - Audi Volkswagen

Stop coolant loss and cure a fogged windshield

Brand:
ACM - Corporate Logo
ES#:
2696113
Mfg#:
8D1819030B
Ships in 3 Business Days
$33.99

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

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#2627316 - 06B121057A - Coolant Hose - Connects the thermostat housing the the hard water pipe - Rein - Audi

Connects the thermostat housing the the hard water pipe 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2627316
Mfg#:
06B121057A
In Stock
$7.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose - Return

ES#3463363 - 8D0819373N - Heater Core Hose - Return - Connects the heater core to the hard water pipe - Hudson - Audi Volkswagen

Connects the heater core to the hard water pipe From VIN 8D-V-143893, split is in the 1997 model year

Brand:
Hudson - Corporate Logo
ES#:
3463363
Mfg#:
8D0819373N
Ships in 3 Business Days
$24.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#2803798 - 8E0121055E - Radiator Hose - Lower - Runs from the radiator to the water pipe. - Rein - Audi

Runs from the radiator to the water pipe. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803798
Mfg#:
8E0121055E
In Stock at Vendor
$97.99

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

$95.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Clutch

ES#257170 - 058121350 - Auxiliary Fan Clutch - Common cause of overheating issues - Meyle - Audi Volkswagen

Common cause of overheating issues 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
257170
Mfg#:
058121350
Ships on Dec 10, 2026
$95.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#2813007 - 06A121012 - Water Pump - Featuring a metal impeller - Hamburg Tech - Audi Volkswagen

Featuring a metal impeller We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813007
Mfg#:
06A121012
Ships in 1 Business Day
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bleeder Screw - Plastic

ES#472266 - WHT000316 - Bleeder Screw - Plastic - Located in the water pipe - Genuine Volkswagen Audi - Audi

Located in the water pipe From VIN# 8E-4-170 001, split is in 2003 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
472266
Mfg#:
WHT000316
Ships in 2 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rubber Grommet - Priced Each

ES#2530125 - 4G0121585A - Rubber Grommet - Priced Each - Replace your cracked or dried out components - Used in the lower portion of the expansion tank - Genuine Volkswagen Audi - Audi

Replace your cracked or dried out components - Used in the lower portion of the expansion tank

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2530125
Mfg#:
4G0121585A
Ships in 1-2 days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Cooling Parts

Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.

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