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Audi A4 Engine Cooling Parts

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Heater Core

ES#2731716 - 8E1820031 - Heater Core - Stop coolant loss and cure a fogged windshield - Vemo - Audi

Stop coolant loss and cure a fogged windshield

Brand:
Vemo - Corporate Logo
ES#:
2731716
Mfg#:
8E1820031
Ships in 1 Business Day
$138.66 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

ES#2649681 - 8E0121403AKT1 - Expansion Tank Replacement Kit - Composed of genuine Audi parts to fix your leaking coolant expansion tank. - Genuine Volkswagen Audi - Audi

Composed of genuine Audi parts to fix your leaking coolant expansion tank.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2649681
Mfg#:
8E0121403AKT1
Ships in 10 Business Days
$139.99

This product was last offered at the strikethrough price on
08-31-2026

$137.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing J-Plug - Billet Aluminum

Strange coolant leak? It's possible you just need to upgrade your J-plug!

Brand:
40T Performance - Corporate Logo
ES#:
4818842
Mfg#:
1.8TJPLUG
Ships in 5 Business Days
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Anti-Freeze Tester

ES#3536250 - EZRSP102 - Anti-Freeze Tester - Don't let your engine freeze, be sure with this easy to use tester - E-Z Red Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Don't let your engine freeze, be sure with this easy to use tester

Brand:
E-Z Red Tools - Corporate Logo
ES#:
3536250
Mfg#:
EZRSP102
Ships in 1 Business Day
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

ES#2582070 - 06B121132E - Cylinder Head Cooling Flange - Located at the rear of cylinder head, includes o-rings - Vaico - Audi

Located at the rear of cylinder head, includes o-rings We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2582070
Mfg#:
06B121132E
Ships in 1 Business Day
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Air Shroud - Left

ES#450298 - 8K0121283K - Radiator Air Shroud - Left - Guides air into the radiator - Genuine Volkswagen Audi - Audi

Guides air into the radiator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450298
Mfg#:
8K0121283K
Ships in 3 Business Days
10% off MSRP

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

$151.99

This product was last offered at the strikethrough price on
08-31-2026

$136.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Control Unit

ES#4908550 - 8D0959501D - Auxiliary Fan Control Unit - Controls the actuation of the radiator fan - Bremmen Parts - Audi

Controls the actuation of the radiator fan 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4908550
Mfg#:
8D0959501D
Special Order: No Guaranteed ETA
$136.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Housing Gasket and Engine Oil Cooler Gasket

ES#5481449 - 06F115441KT - Oil Filter Housing Gasket and Engine Oil Cooler Gasket - Seals housing to the engine block and Connects oil cooler to oil filter housing - Elring - Audi Volkswagen

Seals housing to the engine block and Connects oil cooler to oil filter housing 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Elring - Corporate Logo
ES#:
5481449
Mfg#:
06F115441KT
Ships in 1 Business Day
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Supply

ES#280012 - 06B121058S - Oil Cooler Hose - Supply - Connects the oil cooler to the hard water pipe - Genuine Volkswagen Audi - Audi Volkswagen

Connects the oil cooler to the hard water pipe

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280012
Mfg#:
06B121058S
Ships in 4 Business Days
11% off MSRP

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

$37.99

This product was last offered at the strikethrough price on
09-15-2026

$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expanding Nut - Priced Each

ES#2891455 - 811807577C - Expanding Nut - Priced Each - Install new hardware with your new parts. - Vaico - Audi Volkswagen

Install new hardware with your new parts. We Price Match - Give Us A Call or Chat!
Used in securing the coolant expansion tank

Brand:
Vaico - Corporate Logo
ES#:
2891455
Mfg#:
811807577C
In Stock
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Return Hose

ES#262891 - 06B121058BD - Coolant Return Hose - Connects the hard water pipe to the oil cooler - Rein - Audi

Connects the hard water pipe to the oil cooler 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
262891
Mfg#:
06B121058BD
In Stock
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#4818465 - 06F121057D - Coolant Hose - Rubber coolant hose that connects thermostat to coolant hard pipe - Bremmen Parts - Audi

Rubber coolant hose that connects thermostat to coolant hard pipe 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818465
Mfg#:
06F121057D
In Stock
$4.99 USD
Free Shipping
on orders $49 and up

Engine Oil Cooler

ES#3438771 - 06D117021C - Engine Oil Cooler - Lowers engine oil temperature - NRF B.V. - Audi Volkswagen

Lowers engine oil temperature

Brand:
NRF B.V. - Corporate Logo
ES#:
3438771
Mfg#:
06D117021C
Ships in 1 day
$135.99

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

$131.99 USD
Free Shipping
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 Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803798
Mfg#:
8E0121055E
Ships in 3 Business Days
$97.99

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

$65.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose - Supply

ES#4818191 - 8D0819371H - Heater Core Hose - Supply - Connects the heater core to the cylinder head flange - URO - Audi Volkswagen

Connects the heater core to the cylinder head flange 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From VIN 8D-W-007800, split is in the 1998 model year

Brand:
URO - Corporate Logo
ES#:
4818191
Mfg#:
8D0819371H
Ships in 1 Business Day
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#3491424 - 026121005L - Water Pump - Featuring a metal impeller - Hepu - Audi Volkswagen

Featuring a metal impeller

Brand:
Hepu - Corporate Logo
ES#:
3491424
Mfg#:
026121005L
Ships on Oct 8, 2026
$65.94 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

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Manufacturer names and/or part numbers are used only for identification purposes.

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