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Volkswagen Passat Engine Thermostat Parts

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Thermostat Housing

ES#4715255 - 06K121111P - Thermostat Housing - Includes thermostat and housing gasket - Hudson - Volkswagen

Includes thermostat and housing gasket

Brand:
Hudson - Corporate Logo
ES#:
4715255
Mfg#:
06K121111P
Ships in 1-2 days
$135.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2966372 - b5passtditstatKT - Thermostat Replacement Kit - Includes thermostat with housing, o-ring and mounting hardware - Genuine Volkswagen Audi - Volkswagen

Includes thermostat with housing, o-ring and mounting hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2966372
Mfg#:
B5PASSTDITSTATKT
Ships in 9 Business Days
$128.99

This product was last offered at the strikethrough price on
03-18-2026

$127.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 92�C

ES#283601 - 078121113G - Thermostat - 92C - Includes sealing O-Ring - Genuine Volkswagen Audi - Audi Volkswagen

Includes sealing O-Ring For vehicles with a vin from 3B-X-500 001

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
283601
Mfg#:
078121113G
Ships in 3 Business 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.

$65.99

This product was last offered at the strikethrough price on
07-19-2026

$61.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#3561937 - 03H121113D - Thermostat - Helps your engine regulate its temperature - Genuine Volkswagen Audi - Audi Volkswagen

Helps your engine regulate its temperature

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3561937
Mfg#:
03H121113D
Ships in 3 Business 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.

$126.99

This product was last offered at the strikethrough price on
07-19-2026

$118.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Allen head Bolt (4mm) - Priced Each

ES#2770175 - N10196103 - Allen head Bolt (4mm) - Priced Each - Install new hardware with your new parts. Black oxide coated, M6x18. - ECS - Audi Volkswagen
ECS Tuning recommends this product.

Install new hardware with your new parts. Black oxide coated, M6x18. 10X Entries For Our 25th Anniversary Sweepstakes!

Used to secure thermostat housing, two required

Brand:
ECS - Corporate Logo
ES#:
2770175
Mfg#:
N10196103
In Stock
ON SALE! SAVE 25%
$1.29

This product was last offered at the strikethrough price on
06-13-2026

$0.97 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 For Our 25th Anniversary 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

Thermostat - 80°C

ES#6471 - 056121113A - Thermostat - 80C - Cooler than stock temperature. - Wahler - Volkswagen

Cooler than stock temperature.

Brand:
Wahler - Corporate Logo
ES#:
6471
Mfg#:
056121113A
Ships in 2 Business Days
$28.99

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

$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80�C

ES#277411 - 056121113A - Thermostat - 80C - Cooler than stock temperature - Genuine Volkswagen Audi - Volkswagen

Cooler than stock temperature

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277411
Mfg#:
056121113A
Ships in 7 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.

$57.99

This product was last offered at the strikethrough price on
07-19-2026

$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat housing cover

ES#2639856 - 06K121121E - Thermostat housing cover - Secures thermostat to thermostat housing - Genuine Volkswagen Audi - Volkswagen

Secures thermostat to thermostat housing

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2639856
Mfg#:
06K121121E
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.

$59.99

This product was last offered at the strikethrough price on
07-19-2026

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

Thermostat (87°C)

ES#3149390 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear. Includes O-ring - Rein - Audi Volkswagen

Prevent overheating and premature engine wear. Includes O-ring 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3149390
Mfg#:
050121113C
Back Ordered
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#2801566 - WHT006407 - Sealing O-Ring - Priced Each - Install a new o-ring for a proper seal. 20x3 - Rein - Audi Volkswagen

Install a new o-ring for a proper seal. 20x3 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Seals the hard coolant pipe to the thermostat housing

Brand:
Rein - Corporate Logo
ES#:
2801566
Mfg#:
WHT006407
In Stock at Vendor
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#472389 - WHT000863 - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat. 56.2x3 - Genuine Volkswagen Audi - Audi Volkswagen

Ensure a proper seal when installing your new thermostat. 56.2x3

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
472389
Mfg#:
WHT000863
Ships in 3 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#3199837 - 06H121026BA - Water Pump - Features plastic impeller and includes gasket - URO - Audi Volkswagen

Features plastic impeller and includes gasket 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with TSI engines only

Brand:
URO - Corporate Logo
ES#:
3199837
Mfg#:
06H121026BA
Ships in 2 Business Days
$49.99 USD
Free Shipping
on orders $49 and up

Thermostat Housing Cover

ES#2708826 - 021121121A - Thermostat Housing Cover - Covers the thermostat, located on the coolant flange - URO - Volkswagen

Covers the thermostat, located on the coolant flange 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2708826
Mfg#:
021121121A
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#5425901 - 03H121117A - Thermostat Housing - Common point of failure or leaking for the cooling system - Hamburg Tech - Audi Volkswagen

Common point of failure or leaking for the cooling system For vehicles with VIN from 3C-7-120 001 only, split is in the 2007 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
5425901
Mfg#:
03H121117A
Ships in 2 Business Days
$98.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

hex head Bolt - Priced Each

ES#470116 - N90533005 - hex head Bolt - Priced Each - Install new hardware with your new parts. M6x20 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x20 Secures the thermostat cover to the thermostat housing

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470116
Mfg#:
N90533005
Ships in 3 Business Days
25% off MSRP

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

$3.99

This product was last offered at the strikethrough price on
07-19-2026

$2.99 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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