Includes sealing O-Ring
For vehicles with a vin from 3B-X-500 001
Volkswagen Passat Thermostat Parts
Located on the water pump assembly
For vehicles with AEB or ATW engine codes only.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
07-20-2026
Prevent overheating and premature engine wear
This product was last offered at the strikethrough price on
06-17-2026
Ensure a proper seal when installing your new thermostat. 50x3.5mm
For vehicles with FSI engines only
Includes sealing O-Ring
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Includes sealing O-Ring
Prevent overheating and premature engine wear
Includes sealing O-Ring
Common point of failure or leaking for the cooling system
Does not include sealing O-Ring
Includes sealing O-Ring
We Price Match - Give Us A Call or Chat!
Located on the left side of the engine block
2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with AUG or AWM engine codes only.
Ensure a proper seal when installing your new thermostat. 50x4
2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
This product was last offered at the strikethrough price on
05-07-2026
Cooler than stock temperature
Prevent overheating and premature engine wear
2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Prevent overheating and premature engine wear - 050121113C