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Volkswagen Passat B7 TDI

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Volkswagen Passat B7 TDI Engine Thermostat Parts

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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 Into Our F80 M3 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

Integrated Thermostat Housing Assembly With Sensor

ES#5396368 - 03L121111Q - Integrated Thermostat Housing Assembly With Sensor - Regulates flow of coolant according to temperature - URO - Volkswagen

Regulates flow of coolant according to temperature 2X Entries Into Our F80 M3 Sweepstakes
For vehicles with CKRA engine code only

Brand:
URO - Corporate Logo
ES#:
5396368
Mfg#:
03L121111Q
Ships in 2 Business Days
$129.99 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
Ships in 3 Business Days
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

ES#4883487 - 04L121113C - Thermostat - Regulates flow of coolant according to temperature - Rein - Volkswagen

Regulates flow of coolant according to temperature 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with CVCA engine code only

Brand:
Rein - Corporate Logo
ES#:
4883487
Mfg#:
04L121113C
In Stock at Vendor
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#2741709 - 04L121113C - Thermostat - Regulates flow of coolant according to temperature - Genuine Volkswagen Audi - Volkswagen

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2741709
Mfg#:
04L121113C
Ships in 3 Business Days
10% off MSRP

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

$62.99

This product was last offered at the strikethrough price on
10-05-2026

$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#2834711 - 06B121119B - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat. 50x3.5mm - Meistersatz - Audi Volkswagen

Ensure a proper seal when installing your new thermostat. 50x3.5mm

Brand:
Meistersatz - Corporate Logo
ES#:
2834711
Mfg#:
06B121119B
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat o-ring

ES#2831938 - WHT007713 - Thermostat o-ring - Seals thermostat in housing. 43mmx3.2mm - Genuine Volkswagen Audi - Volkswagen

Seals thermostat in housing. 43mmx3.2mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2831938
Mfg#:
WHT007713
In Stock
Limited Qty Sale
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87-135°C)

Restore proper engine operating temperatures and cabin heat with a premium direct-replacement thermostat assembly. 2X Entries Into Our F80 M3 Sweepstakes
For vehicles with CKRA engine code only

Brand:
Rein - Corporate Logo
ES#:
5507013
Mfg#:
03L121111Q
Ships in 4 Business Days
$97.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Audi - Engine/Cooling

ES#4900554 - 04L121113C - Audi - Engine/Cooling - Meyle - Volkswagen

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4900554
Mfg#:
04L121113C
Ships on Oct 21, 2026
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#4040587 - 04L121026AE - Thermostat Housing - Regulates flow of coolant according to temperature - Vemo - Audi Volkswagen

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

Brand:
Vemo - Corporate Logo
ES#:
4040587
Mfg#:
04L121026AE
Special Order: No Guaranteed ETA
$135.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#4057374 - 04L121113C - Thermostat - Regulates flow of coolant according to temperature - Vemo - Audi Volkswagen

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

Brand:
Vemo - Corporate Logo
ES#:
4057374
Mfg#:
04L121113C
Special Order: No Guaranteed ETA
$70.99 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.

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