Review on Gates 33877 170F 77C Thermostat by Eric Salem

Worked well. Gates is good company. Their thermostats (at least these ones) aren't very well made though. The material used is nowhere near as good quality as an OEM Honda thermostat and the diaphragm opening is much smaller than an OE thermostat. Overall, this thermostat lasted about a month (maybe a little less) before it stopped opening properly and overheated my car, even with a whole new cooling system. I threw the original thermostat back in the car and it's been fine ever since. In my opinion it's a shame that a 20 year old used thermostat works well but a new Gates thermostat can't cool the engine after just a month.