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Volkswagen Golf V 2.5 Engine Thermostat Parts

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Coolant Return Hose

ES#285944 - 07K121065J - Coolant Return Hose - Connects lower thermostat to reservoir return - Genuine Volkswagen Audi - Volkswagen

Connects lower thermostat to reservoir return affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
285944
Mfg#:
07K121065J
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.

$138.99

This product was last offered at the strikethrough price on
02-26-2026

$128.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Return Hose

ES#315393 - 1K0122073FF - Heater Core Return Hose - Connects rear thermostat housing to heater core hoses - Genuine Volkswagen Audi - Volkswagen

Connects rear thermostat housing to heater core hoses affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315393
Mfg#:
1K0122073FF
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.

$417.99

This product was last offered at the strikethrough price on
02-26-2026

$388.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#285949 - 07K121115C - Thermostat Housing - Includes housing, thermostat, o-rings, and hardware - Genuine Volkswagen Audi - Volkswagen

Includes housing, thermostat, o-rings, and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
285949
Mfg#:
07K121115C
In Stock at Vendor
69% off MSRP

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

$309.99

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

Thermostat Assembly

ES#4158620 - 07K121115C - Thermostat Assembly - Includes housing, thermostat, o-rings, and hardware - Hamburg Tech - Volkswagen

Includes housing, thermostat, o-rings, and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4158620
Mfg#:
07K121115C
In Stock
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#285948 - 07K121113B - Thermostat - Prevent overheating and premature engine wear - Genuine Volkswagen Audi - Volkswagen

Prevent overheating and premature engine wear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
285948
Mfg#:
07K121113B
Ships in 1-2 days
6% off MSRP

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

$84.99

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

$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#4146590 - 07K121113B - Thermostat - Prevent overheating and premature engine wear - Rein - Volkswagen

Prevent overheating and premature engine wear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4146590
Mfg#:
07K121113B
In Stock
$47.99

This product was last offered at the strikethrough price on
03-06-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat cover

ES#285952 - 07K121121B - Thermostat cover - Found on the thermostat housing - Genuine Volkswagen Audi - Volkswagen

Found on the thermostat housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
285952
Mfg#:
07K121121B
In Stock
2% off MSRP

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

$80.99

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

$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat / Water Pump Replacement Kit

ES#5386554 - 07K121011BKT9 - Thermostat / Water Pump Replacement Kit - Includes necessary parts to replace the thermostat. - Genuine Volkswagen Audi - Volkswagen

Includes necessary parts to replace the thermostat. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with engine code CBUA and CBTA

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5386554
Mfg#:
07K121011BKT9
Ships in 1-2 days
$514.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Heater Hose

ES#315392 - 1K0122073FE - Heater Hose - Connects rear thermostat housing to heater core hoses - Genuine Volkswagen Audi - Volkswagen

Connects rear thermostat housing to heater core hoses affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315392
Mfg#:
1K0122073FE
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.

$420.99

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

$392.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat / Water Pump Replacement Kit

ES#5386555 - 07K121011BKT10 - Thermostat / Water Pump Replacement Kit - Includes necessary parts to replace the thermostat. - Assembled By ECS - Volkswagen

Includes necessary parts to replace the thermostat. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5386555
Mfg#:
07K121011BKT10
Back Ordered
Auto Notify
ON SALE!
$346.99

This product was last offered at the strikethrough price on
01-03-2026

$336.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat Assembly

ES#4933078 - 07K121115C - Thermostat Assembly - Includes housing, thermostat, o-rings, and hardware - URO - Volkswagen

Includes housing, thermostat, o-rings, and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
URO - Corporate Logo
ES#:
4933078
Mfg#:
07K121115C
Back Ordered
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2582100 - 07K121113BKT - Thermostat Replacement Kit - Everything you need to service a faulty thermostat - Genuine Volkswagen Audi - Volkswagen

Everything you need to service a faulty thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2582100
Mfg#:
07K121113BKT
Ships in 1-2 days
$247.99

This product was last offered at the strikethrough price on
04-20-2026

$237.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat

ES#2569632 - 07K121113B - Thermostat - Prevent overheating and premature engine wear - Wahler - Volkswagen

Prevent overheating and premature engine wear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wahler - Corporate Logo
ES#:
2569632
Mfg#:
07K121113B
Ships in 2 Business Days
$41.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#2800894 - 07K121115C - Thermostat Housing - Includes housing, thermostat, o-rings, and hardware - Meistersatz - Volkswagen

Includes housing, thermostat, o-rings, and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Meistersatz - Corporate Logo
ES#:
2800894
Mfg#:
07K121115C
Ships in 3 Business Days
$92.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring

ES#2663663 - WHT005190 - Sealing O-Ring - Found on the thermostat housing assembly. 37.5x4x6 - Genuine Volkswagen Audi - Audi Volkswagen

Found on the thermostat housing assembly. 37.5x4x6 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2663663
Mfg#:
WHT005190
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2972458 - 07K121113BKT6 - Thermostat Replacement Kit - Everything you need to service a faulty thermostat - Assembled By ECS - Volkswagen

Everything you need to service a faulty thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2972458
Mfg#:
07K121113BKT6
Ships in 3 Business Days
ON SALE!
$132.53

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

$130.59 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

More About Engine Thermostat Parts

Your thermostat helps regulate engine temperatures by allowing the coolant to circulate through the radiator once it opens. If it fails, this might mean it never closes, but worst case, it could mean your coolant doesn't get to the radiator. Stay ahead of cooling issues by replacing your thermostat regularly with an OEM thermostat or quality aftermarket thermostat from our selection.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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