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Thermostat OEM Volkswagen or Duralast
Reviews
I've used Autozone's Duralast thermostats without issue on my old Integra.
Pros: reliable performance
Vehicle:
Acura Integra
I did the timing belt water pump thing on my MK4 last year, and shortly after the test drive with fresh genuine VW antifreeze and while patting myself on the back for a job well done it occurred to me that I hadn't changed the thermostat. Sure enough a month or so ago when the first of the really cold whether started around here the temp gauge would only get to about halfway to normal during a trip to town and back. I tried the ol' cardboard in the grill routine for a couple of days until I got a chance to change the thermostat and that brought things back to normal.
Pros: brought things back normal
Cons: temp gauge halfway
Vehicle:
Volkswagen
installed new Duralast (motorad) 207F thermostat and it seems to have fixed the issues. Gauge is coming up to just a hair under the 210 midpoint and the live data on my scan tool shows the ECT is running between 205 and about 214F after fully warmed up and moderate level accelerations and driving. The front heat is now scorching hot and the rear heat is much improved as well.
Pros: fixed issues, improved heating, stable temperature
I got a duralast part from autozone with a lifetime warranty for 25 bucks. My jeep has been been running well for the last year since the change to the duralast part
Pros: running well, lifetime warranty
Vehicle:
Jeep Wrangler
I've got a 13 sport with 135k miles on it. Only ever done oil changes, spark plugs, 12v battery and a thermostat. Other than that it’s been stupid reliable.
Pros: stupid reliable
Vehicle:
Volkswagen Touareg
Mileage: 217261 km
I will say I went through several OEM stats and finally put a duralast in and it's been in now 5 years no problems.
Pros: no problems, 5 years reliability
Vehicle:
Toyota Sienna
I have owned my B6 since new and had the thermostat replaced under Warranty around 36,000 miles, at that point the slow warm up was causing the MIL to illuminate with a error that basically said warm up outside specification.
Cons: slow warm up
Vehicle:
Volkswagen Passat B6
Mileage: 57936 km
I’ve changed mine once already recently (it was a duralast thermostat because I’m stupid, that might be the current issue) and it’s still acting similar and trending towards overheating at 60+ mph even with the radiator fans on high. The radiator in lines are frigid after it’s been running at mid/high temps and the radiator out lines are hot
Cons: trending towards overheating, acting similar
Vehicle:
Ford
After getting mine back together, and filling it back up with coolant, i found the new thermostat from the dealership was stuck wide open and the car wouldn’t get over 110*F.
Cons: stuck wide open, car wouldn't heat
Vehicle:
Volkswagen Passat
I'd advise taking that Duralast thermostat out and installing either an OEM unit or a unit from a trusted brand (such as Stant). If the Duralast gets stuck in a closed position, the SUV will overheat. If it gets stuck in an open position, the engine won't reach operating temp, and you'll have issues such as running rich. Duralast has a nickname we techs refer to: Duracrap or Dura-doesn't-last.
Cons: gets stuck, engine overheating, poor reliability
Vehicle:
Kia Sorento
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