ive got a jdm h22a in my civic, now it barely gets to operating temp and if it does takes way to long so odds are its the t stat sticking open. Ive been hearing that the jdm thermostat is different than its usdm version. Just wanted to kno if the usdm one will fit and what not. or a part # of the JDM t stat

 

yes the usdm will fit. i just put in a usdm thermostat in my jdm h22 not too long ago. works perfect.

 

just don't get it from Advanced Auto....i had to wait a few days to get one in, then it was way to small to fit in the housing. I had to go to some small mom & pop type autoparts store, and they had the right one in stock

 

oreillys is the best

 

The same thing happened to me. I just went to honda and ordered one from them. It was a bit higher but I knew it was gonna fit.