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Volkswagen MK5 Engine Thermostat Parts

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Aluminum Water Pump Module (06H121026DD)

ES#4782970 - 06H121026DD - Aluminum Water Pump Module (06H121026DD) - Complete water pump with thermostat, temp sensor, and gasket. Featuring a high quality INA bearing for high efficiency and long service life. - Bremmen Parts - Audi Volkswagen
ECS Tuning recommends this product.

Complete water pump with thermostat, temp sensor, and gasket. Featuring a high quality INA bearing for high efficiency and long service life. 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with TSI engines only

Brand:
Bremmen Parts - Corporate Logo
ES#:
4782970
Mfg#:
06H121026DD
In Stock
ON SALE! SAVE 10%
$210.99

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

$189.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pump Module (06H121026DD)

ES#3647064 - 06H121026DD - Aluminum Water Pump Module (06H121026DD) - Complete water pump housing module, includes thermostat, temp sensor, and gasket - Featuring a full aluminum housing with metal impeller! - Metelli - Audi Volkswagen

Complete water pump housing module, includes thermostat, temp sensor, and gasket - Featuring a full aluminum housing with metal impeller! For vehicles with TSI engines only

Brand:
Metelli - Corporate Logo
ES#:
3647064
Mfg#:
06H121026DD
In Stock
$265.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Module

ES#4391009 - 06H121026DR - Water Pump Module - Includes the thermostat, temp sensor, and gasket - URO - Audi Volkswagen

Includes the thermostat, temp sensor, and gasket 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4391009
Mfg#:
06H121026DR
In Stock
$159.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Module

ES#4876883 - 06J121026BH - Water Pump Module - Includes the thermostat and gaskets. - Bremmen Parts - Audi Volkswagen

Includes the thermostat and gaskets. 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with TSI engines only

Brand:
Bremmen Parts - Corporate Logo
ES#:
4876883
Mfg#:
06J121026BH
In Stock
ON SALE! SAVE 14%
$254.99

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

$219.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Kit with Coolant

ES#4765652 - 06J121026NKT2 - Water Pump Kit with Coolant - Includes a new water pump, belt, thermostat/housing, aluminum union piece & hardware, and G13 coolant - Assembled By ECS - Audi Volkswagen

Includes a new water pump, belt, thermostat/housing, aluminum union piece & hardware, and G13 coolant 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with TSI engines only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4765652
Mfg#:
06J121026NKT2
In Stock
ON SALE! SAVE 24%
$321.11

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

$244.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Water Pump Module

ES#4507241 - 06H121026ED - Water Pump Module - Includes the thermostat, temp sensor, and gasket - Genuine Volkswagen Audi - Audi Volkswagen

Includes the thermostat, temp sensor, and gasket For vehicles with TSI engines only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4507241
Mfg#:
06H121026ED
In Stock
14% off MSRP

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

$507.49

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

$438.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Module

ES#3194789 - 06H121026DD - Water Pump Module - Includes the thermostat. Coolant temp sensor and gasket sold separately. - Pierburg - Audi Volkswagen

Includes the thermostat. Coolant temp sensor and gasket sold separately. For vehicles with TSI engines only

Brand:
Pierburg - Corporate Logo
ES#:
3194789
Mfg#:
06H121026DD
In Stock
$448.99

This product was last offered at the strikethrough price on
05-20-2026

$328.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing with Gasket

ES#4342251 - 022121117CS1 - Thermostat Housing with Gasket - Common point of failure or leaking for the cooling system - Febi - Audi Volkswagen

Common point of failure or leaking for the cooling system We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4342251
Mfg#:
022121117CS1
In Stock
$66.99

This product was last offered at the strikethrough price on
04-13-2026

$52.99 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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
285949
Mfg#:
07K121115C
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.

$309.98

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

$289.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Thermostat Housing Kit

ES#3553466 - 462-121-vr-24vKT - Cast Aluminum Thermostat Housing Kit - Replace your inferior plastic housings - iABED Industries - Audi Volkswagen

Replace your inferior plastic housings Modification to water pipe may be required. Please see description for details.

Brand:
iABED Industries - Corporate Logo
ES#:
3553466
Mfg#:
462-121-VR-24VKT
Back Ordered
Auto Notify
$251.99

This product was last offered at the strikethrough price on
04-16-2026

$250.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pump Module (06H121026DD)

ES#4362074 - 06H121026DD - Aluminum Water Pump Module (06H121026DD) - Complete water pump housing module, includes thermostat, temp sensor, belt and gasket - Featuring a full aluminum housing! - Rein - Audi Volkswagen

Complete water pump housing module, includes thermostat, temp sensor, belt and gasket - Featuring a full aluminum housing! 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with TSI engines only

Brand:
Rein - Corporate Logo
ES#:
4362074
Mfg#:
06H121026DD
Back Ordered
Auto Notify
ON SALE!
$477.99

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

$454.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bolt - Priced Each

ES#261191 - N90735604 - Bolt - Priced Each - Install new hardware with your new parts. M7x28 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M7x28 For vehicles with BPY engine code. Secures thermostat housing to engine block - 2 needed total

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
261191
Mfg#:
N90735604
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.

$4.18

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

$4.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#4196 - 022121117C - Thermostat Housing - Common point of failure or leaking for the cooling system - Genuine Volkswagen Audi - Audi Volkswagen

Common point of failure or leaking for the cooling system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4196
Mfg#:
022121117C
Ships in 2 Business Days
$189.99

This product was last offered at the strikethrough price on
04-24-2026

$184.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Thermostat Housing

ES#3553457 - 462-121-VR47C - Cast Aluminum Thermostat Housing - Replace your inferior plastic housing - iABED Industries - Audi Volkswagen

Replace your inferior plastic housing Modification to water pipe may be required. Please see description for details.

Brand:
iABED Industries - Corporate Logo
ES#:
3553457
Mfg#:
462-121-VR47C
Back Ordered
Auto Notify
$169.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Cover

ES#269571 - 022121121E - Thermostat Housing Cover - Common source of coolant leaks around your thermostat - Genuine Volkswagen Audi - Audi Volkswagen

Common source of coolant leaks around your thermostat

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
269571
Mfg#:
022121121E
In Stock
10% off MSRP

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

$52.65

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

$47.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
285944
Mfg#:
07K121065J
Ships in 3 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.

$138.99

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

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

Let us help you find the parts that fit your Volkswagen

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

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