Owner reviews for thermostat

I just bought two thermostat related parts off rockauto that are both Aisin yesterday.

I have Mitsubishi multi splits and they run 20 hours a day at the lowest setting, temp is always within one degree. Have your HVAC guy set the temperature delta on the thermostats.

OEM Nissan, but slightly more conservative with cooling.

I have installed them in two rebuilt, and they are working perfectly fine

03’ E46 318ci with 130k miles and no issues with the whole cooling system. Neither the thermostat.

My '83 Mighty Max with 783,000+ miles on its original engine, thermostat included, would like a word. I'm pretty sure it will outlast me if I can stay ahead of the rust.

My 2021 Mazda3 Turbo has classic thermostat failure symptoms: \n\n- Erratic warm-up (sometimes stuck cold, sometimes near overheating). \n- Upper radiator hose stays lukewarm even after 20+ mins of driving (revved to 3K RPM to test). \n- Housing burns hot, but hose never gets scalding\u2014clear sign of a stuck thermostat.

I put the mishimoto 160* in hot water to test it out. Lo and behold, wax started seeping out.

I had 2 fail back to back. The first lasted 3 months, a couple thousand miles, the 2nd lasted 5 weeks, also a couple thousand miles. Left me stranded. 275 degree spike followed by coolant puking.

Thermostat failed multiple times