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Volkswagen Passat Engine Cooling Parts

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Expansion Tank Replacement Kit

ES#2580983 - 8D0121403LKT1 - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi Volkswagen

Install a brand new expansion tank with a new cap and hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2580983
Mfg#:
8D0121403LKT1
Ships in 1-2 days
ON SALE!
$49.99

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

$47.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose Flange

ES#275134 - 038121132D - Coolant Hose Flange - Common point of failure or leaking for the cooling system on your TDI. - Genuine Volkswagen Audi - Volkswagen

Common point of failure or leaking for the cooling system on your TDI.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275134
Mfg#:
038121132D
Ships in 1-2 days
7% off MSRP

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

$153.99

This product was last offered at the strikethrough price on
09-05-2026

$142.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#2976393 - 06K121113G - Thermostat - Regulates coolant temperature by controlling flow - Genuine Volkswagen Audi - Volkswagen

Regulates coolant temperature by controlling flow

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2976393
Mfg#:
06K121113G
Ships in 1-2 days
7% off MSRP

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

$153.32

This product was last offered at the strikethrough price on
09-05-2026

$142.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#3235744 - 4B0121055J - Radiator Hose - Lower - Connects the lower radiator port to the water pump and expansion tank - Gates - Audi Volkswagen

Connects the lower radiator port to the water pump and expansion tank For vehicles with AUG or AWM engine codes only.

Brand:
Gates - Corporate Logo
ES#:
3235744
Mfg#:
4B0121055J
Ships on Sep 25, 2026
$142.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#2594504 - 021121117A - Thermostat Housing - Located on the drivers side of the engine, does not include required o-rings - URO - Volkswagen

Located on the drivers side of the engine, does not include required o-rings 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2594504
Mfg#:
021121117A
Ships in 1 Business Day
ON SALE!
$25.99

This product was last offered at the strikethrough price on
08-26-2026

$23.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2763367 - 075121113DKT3 - Thermostat Replacement Kit - Includes the parts you'll want to replace while performing a thermostat replacement - Assembled By ECS - Volkswagen

Includes the parts you'll want to replace while performing a thermostat replacement 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2763367
Mfg#:
075121113DKT3
Ships in 3 Business Days
ON SALE!
$71.99

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

$71.18 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Pump

ES#8847 - 038121011G - Water Pump - Featuring a plastic impeller - Graf - Audi Volkswagen

Featuring a plastic impeller

Brand:
Graf - Corporate Logo
ES#:
8847
Mfg#:
038121011G
Ships in 4 Business Days
$72.99

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

$70.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Belt Cover

ES#281389 - 06H109121G - Water Pump Belt Cover - Protects the water pump belt - Genuine Volkswagen Audi - Audi Volkswagen

Protects the water pump belt For vehicles with TSI engines only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281389
Mfg#:
06H109121G
Ships in 2 Business Days
7% 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

$140.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#2570122 - 1K0121251AB - Radiator - Keep your engine running cool with a new radiator - Metrix - Audi Volkswagen

Keep your engine running cool with a new radiator For vehicles with BPY engine code only

Brand:
Metrix - Corporate Logo
ES#:
2570122
Mfg#:
1K0121251AB
Back Ordered
$144.99

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

$140.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#2677915 - 021121117A - Thermostat Housing - Located on the drivers side of the engine. O-rings sold separately. - Vaico - Volkswagen

Located on the drivers side of the engine. O-rings sold separately. We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2677915
Mfg#:
021121117A
Ships in 1 Business Day
$48.99

This product was last offered at the strikethrough price on
08-26-2026

$46.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Thermostat Replacement Kit

ES#2580973 - 06B121121LKT1 - Complete Thermostat Replacement Kit - Includes a genuine 87C thermostat, housing, o-ring and stretch bolts - Assembled By ECS - Volkswagen

Includes a genuine 87�C thermostat, housing, o-ring and stretch bolts 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with AUG or AWM engine codes only.

Brand:
Assembled By ECS - Corporate Logo
ES#:
2580973
Mfg#:
06B121121LKT1
In Stock
ON SALE! SAVE 24%
$36.99

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

$28.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Pipe

ES#4325022 - 078121070CF - Cooling Pipe - With integrated power steering line - Vaico - Audi Volkswagen

With integrated power steering line We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4325022
Mfg#:
078121070CF
Ships in 1-2 days
$274.99

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

$139.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Thermostat Housing

ES#3553455 - 462-121-VR37A - Cast Aluminum Thermostat Housing - Replace your inferior plastic housing - iABED Industries - Volkswagen

Replace your inferior plastic housing

Brand:
iABED Industries - Corporate Logo
ES#:
3553455
Mfg#:
462-121-VR37A
Back Ordered
Auto Notify
$139.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Supply

ES#2627305 - 06B121058S - Oil Cooler Hose - Supply - Connects the oil cooler to the hard water pipe - Rein - Audi Volkswagen

Connects the oil cooler to the hard water pipe 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with AUG or AWM engine codes only.

Brand:
Rein - Corporate Logo
ES#:
2627305
Mfg#:
06B121058S
In Stock
ON SALE!
$6.66

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

$6.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core

ES#2718628 - 8D1819031C - Heater Core - A common part that leaks over time causing a sweet interior smell - Nissens - Volkswagen

A common part that leaks over time causing a sweet interior smell We Price Match - Give Us A Call or Chat!

Brand:
Nissens - Corporate Logo
ES#:
2718628
Mfg#:
8D1819031C
Ships in 1-2 days
$138.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose

ES#271011 - 028121053Q - Oil Cooler Hose - Runs from water pump to the oil cooler - Genuine Volkswagen Audi - Volkswagen

Runs from water pump to the oil cooler

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
271011
Mfg#:
028121053Q
Ships in 1-2 days
7% off MSRP

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

$148.99

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

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 Volkswagen

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