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Audi Engine Cooling Parts

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Thermostat Replacement Kit

ES#3659374 - 07812112jKT4 - Thermostat Replacement Kit - Keep your cooling system efficient with a new thermostat and housing - Assembled By ECS - Audi

Keep your cooling system efficient with a new thermostat and housing 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Aluminum housing used on the B5 S4 - Commonly used as a factory upgrade for the OE plastic piece

Brand:
Assembled By ECS - Corporate Logo
ES#:
3659374
Mfg#:
07812112JKT4
Ships in 3 Business Days
ON SALE!
$185.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Hose

ES#4818674 - 8K0121081AH - Coolant Expansion Tank Hose - Located between the coolant expansion tank and the cylinder head coolant flange - Bremmen Parts - Audi

Located between the coolant expansion tank and the cylinder head coolant flange 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818674
Mfg#:
8K0121081AH
In Stock
ON SALE! SAVE 15%
$46.99

This product was last offered at the strikethrough price on
08-17-2026

$39.94 USD
Free Shipping
on orders $49 and up

12mm 14pt Wrench For Waterpump Main Shaft

ES#4413996 - BT10360 - 12mm 14pt Wrench For Waterpump Main Shaft - Used to remove waterpump drive. - Baum Tools - Audi Volkswagen

Used to remove waterpump drive. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Baum Tools - Corporate Logo
ES#:
4413996
Mfg#:
BT10360
Ships on Jan 8, 2027
$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose - Return

ES#315394 - 1K0122073FN - Heater Core Hose - Return - Connects the heater core pipe to the flange - Genuine Volkswagen Audi - Audi Volkswagen

Connects the heater core pipe to the flange Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315394
Mfg#:
1K0122073FN
Ships in 3 Business Days
12% off MSRP

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

$62.32

This product was last offered at the strikethrough price on
10-28-2026

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe - Return

ES#2817128 - 06E121044AE - Coolant Pipe - Return - Secondary return pipe that connects to the supply pipe and the oil cooler hoses - Genuine Volkswagen Audi - Audi

Secondary return pipe that connects to the supply pipe and the oil cooler hoses Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2817128
Mfg#:
06E121044AE
In Stock
8% off MSRP

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

$146.99

This product was last offered at the strikethrough price on
10-28-2026

$134.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Cleaner - 300mL

ES#3195914 - 2051 - Radiator Cleaner - 300mL - Used to clean out your cooling system and restore efficiency - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz MINI

Used to clean out your cooling system and restore efficiency 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat! This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship

Brand:
Liqui-Moly - Corporate Logo
ES#:
3195914
Mfg#:
2051
In Stock
43% off MSRP

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

$18.99

This product was last offered at the strikethrough price on
09-13-2026

$10.79 USD
Free Shipping
on orders $49 and up

Expansion Tank

ES#3412041 - 5Q0121407G - Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Hudson - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Hudson - Corporate Logo
ES#:
3412041
Mfg#:
5Q0121407G
In Stock
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

ES#2718641 - 06A919501A - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings - Febi - Audi Volkswagen

Monitors coolant temperature for fan control & gauge readings Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2718641
Mfg#:
06A919501A
Ships in 2 Business Days
$18.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Coolant Reroute Hose

ES#4674429 - CI100053-A - APR Coolant Reroute Hose - Plug and play upgrade that neatly runs under the intake for a clean install. - APR - Audi Volkswagen

Plug and play upgrade that neatly runs under the intake for a clean install. Call In Or Chat For Best Price! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
APR - Corporate Logo
ES#:
4674429
Mfg#:
CI100053-A
In Stock
ON SALE! SAVE 12%
$46.99

This product was last offered at the strikethrough price on
09-28-2026

$41.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Silicone Coolant Hose Kit - Red

ES#4362413 - Aut-MK5-002-RED - Silicone Coolant Hose Kit - Red - Replace your stock rubber hoses with silicone - Autobahn Autoworx - Audi Volkswagen

Replace your stock rubber hoses with silicone Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For vehicles with FSI engines only

Brand:
Autobahn Autoworx - Corporate Logo
ES#:
4362413
Mfg#:
AUT-MK5-002-RED
Ships in 2 Business Days
$275.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Supercharger Service Kit

ES#4766245 - 06E145621SF2KT - Ultimate Supercharger Service Kit - Fix all possible coolant leaks for your 3.0T in one click! - Genuine Volkswagen Audi - Audi

Fix all possible coolant leaks for your 3.0T in one click! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4766245
Mfg#:
06E145621SF2KT
Ships in 3 Business Days
$1291.84

This product was last offered at the strikethrough price on
08-24-2026

$1233.50 USD
This product is lifetime replacement eligible Partial Replacement

Primary Fan Assembly - 345MM

ES#2748163 - 1J0959455S - Primary Fan Assembly - 345MM - Main fan responsible for pulling air through your radiator. - URO - Audi Volkswagen

Main fan responsible for pulling air through your radiator. 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2748163
Mfg#:
1J0959455S
In Stock
$93.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#3448378 - 8E0121070B - Radiator Hose - Upper - Includes quick disconnect piece - Feed Hose - Rein - Audi

Includes quick disconnect piece - Feed Hose 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3448378
Mfg#:
8E0121070B
Ships in 2 Business Days
$110.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Kit

ES#3672035 - 5q0121407tKT1 - Coolant Expansion Tank Kit - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank replacement kit. - Genuine Volkswagen Audi - Audi Volkswagen

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank replacement kit. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3672035
Mfg#:
5Q0121407TKT1
In Stock
$184.99

This product was last offered at the strikethrough price on
08-04-2026

$173.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Auxiliary Fan Assembly - 295mm

ES#5432881 - 1KM959455E - Auxiliary Fan Assembly - 295mm - Smaller of the two fans found behind the radiator - Bremmen Parts - Audi Volkswagen

Smaller of the two fans found behind the radiator 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Bremmen Parts - Corporate Logo
ES#:
5432881
Mfg#:
1KM959455E
Ships on Apr 12, 2027
ON SALE! SAVE 20%
$177.99

This product was last offered at the strikethrough price on
09-02-2026

$142.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat / Water Pump Replacement Kit

ES#5386569 - 06E121018A2KT2 - Thermostat / Water Pump Replacement Kit - Includes necessary parts to replace the thermostat and water pump. - Genuine Volkswagen Audi - Audi

Includes necessary parts to replace the thermostat and water pump. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5386569
Mfg#:
06E121018A2KT2
Ships in 1-2 days
$493.99

This product was last offered at the strikethrough price on
05-12-2026

$480.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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.

Other Audi Engine Cooling Parts

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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