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Volkswagen Passat Engine Thermostat Parts

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Thermostat Housing

ES#2925745 - 06K121111P - Thermostat Housing - Includes thermostat and housing gasket - Genuine Volkswagen Audi - Volkswagen

Includes thermostat and housing gasket

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2925745
Mfg#:
06K121111P
In Stock
Limited Qty Sale
$505.99

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

$374.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#4669273 - 06K121111P - Thermostat Housing - Includes thermostat and housing gasket - URO - Volkswagen

Includes thermostat and housing gasket 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4669273
Mfg#:
06K121111P
Ships in 1 Business Day
$129.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat / Water Pump Replacement Kit

ES#4829986 - 06L121111PKT - Thermostat / Water Pump Replacement Kit - Includes necessary parts to replace the thermostat and water pump - Assembled By ECS - Audi Volkswagen

Includes necessary parts to replace the thermostat and water pump 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4829986
Mfg#:
06L121111PKT
In Stock at Vendor
$604.99 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 For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4362074
Mfg#:
06H121026DD
Back Ordered
Auto Notify
$477.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#4766153 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear. Includes O-ring - Bremmen Parts - Audi Volkswagen

Prevent overheating and premature engine wear. Includes O-ring 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766153
Mfg#:
050121113C
In Stock
ON SALE!
$16.99

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

$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Allen/Hex Bolt - Priced Each

ES#4151982 - N90945002 - Allen/Hex Bolt - Priced Each - Install new hardware with your new parts. M7x21.5mm - Rein - Audi Volkswagen

Install new hardware with your new parts. M7x21.5mm 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4151982
Mfg#:
N90945002
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Kit

ES#4853794 - 06K121111PKIT - Thermostat Housing Kit - Includes a new water pump, belt, thermostat/housing, and union piece - Vemo - Volkswagen

Includes a new water pump, belt, thermostat/housing, and union piece

Brand:
Vemo - Corporate Logo
ES#:
4853794
Mfg#:
06K121111PKIT
Ships on Nov 11, 2026
$260.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2588723 - 06F121111FKT - Thermostat Replacement Kit - Includes thermostat with housing, o-ring and mounting hardware - Assembled By ECS - Audi Volkswagen

Includes thermostat with housing, o-ring and mounting hardware 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with FSI engines only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2588723
Mfg#:
06F121111FKT
In Stock
ON SALE! SAVE 23%
$48.97

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

$37.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Torx Bolt - Priced Each

ES#467607 - N10196103 - Torx Bolt - Priced Each - Install new hardware with your new parts. M6x18 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x18 Used to secure thermostat housing, two required

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467607
Mfg#:
N10196103
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 87C

ES#1892327 - 078121113F - Thermostat - 87C - Prevent overheating and premature engine wear - Mahle-Behr - Audi Volkswagen

Prevent overheating and premature engine wear

Brand:
Mahle-Behr - Corporate Logo
ES#:
1892327
Mfg#:
078121113F
In Stock
$28.99

This product was last offered at the strikethrough price on
04-09-2026

$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Racing Thermostat (82C)

ES#3184176 - MMTS-GTI-99 - Racing Thermostat (82C) - Prevent overheating and premature engine wear with a lower opening temperature - Mishimoto - Audi Volkswagen

Prevent overheating and premature engine wear with a lower opening temperature

Brand:
Mishimoto - Corporate Logo
ES#:
3184176
Mfg#:
MMTS-GTI-99
In Stock
$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80°C

ES#2713078 - 075121113D - Thermostat - 80C - Includes sealing O-Ring - Vemo - Audi Volkswagen

Includes sealing O-Ring

Brand:
Vemo - Corporate Logo
ES#:
2713078
Mfg#:
075121113D
In Stock at Vendor
$18.99

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

$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87-135°C)

ES#2178912 - 03L121111Q - Thermostat (87-135C) - Regulates flow of coolant according to temperature - Genuine Volkswagen Audi - Volkswagen

Regulates flow of coolant according to temperature For vehicles with CKRA engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2178912
Mfg#:
03L121111Q
In Stock at Vendor
2% off MSRP

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

$179.99

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

$176.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#261231 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear - Genuine Volkswagen Audi - Audi Volkswagen

Prevent overheating and premature engine wear

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
261231
Mfg#:
050121113C
Ships in 2 Business Days
15% off MSRP

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

$61.99

This product was last offered at the strikethrough price on
07-17-2026

$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#2966221 - 07D121111AB - Thermostat - Prevent overheating with a new thermostat - Mahle - Volkswagen

Prevent overheating with a new thermostat

Brand:
Mahle - Corporate Logo
ES#:
2966221
Mfg#:
07D121111AB
In Stock at Vendor
$1297.66

This product was last offered at the strikethrough price on
07-02-2026

$1209.16 USD
Free Shipping
on orders $49 and up

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 For vehicles with manual transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315393
Mfg#:
1K0122073FF
Ships in 1 day
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

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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