Thermostat MISHIMOTO or MotoRad

I have a mishimoto thermostat with their radiator setup. It does kick on the fans on at a lower temp range than when the stock one would which is good. I had issues running hot on the stock rad/thermostat and haven't had any issues since.

I used one of the MotoRad safety thermostat's that have a 1/16" hole already in them, in my 84. So.. No, I don't think you'll have any problems adding a hole.

I replaced the thermostat with a Mishimoto thermostat and vaccume filled the coolant. I did a 30 min test drive in the 95+ weather with the AC cranked. Never went past the 7th dot.

I tried a parts store Motorad, failed. Tried a Napa gold stat that turned out to be repackaged Motorad, failed.

mishimoto changed the design of the thermostat when I purchased and you will need shorter bolts they are not provided

Every 6-7 months the cheap garbage scam of a brand Motorrad remains to be the only available thermostat I can access. I do the temp gun test, I verify my sensors are correct. I burp the cooling system. Everything. I’ve gotten so good at the job now. Every brand of thermostat I’ve tried in Canada is a Reboxed Motorrad. Premium to Economy. 7$-25 they’re all the stupid same. Parts source, Gates , Napa , Autovalue , “mopar” from my dealer. All Motorrad at different prices. I know of 2 they make, the standard oe 195 which is usually economy line. And the fail safe one they make. Both have catastrophic failures, either get stuck open, spring blows apart. Usually after 6-7 months they stop working entirely or the thing slowly stops letting the Jeep get to temp and I dread reliving the Motorrad Groundhog Day effect. It’s a garbage thermostat. People have argued with me that they make OEM equivalent parts and they never have issues but I’ve had nothing but issues.

I had to replace mine again after 6 months.

Just not Motorad--unless you want to replace it again in 6 months

I got a bad mishimoto thermostat with similar results.

MotoRad thermostat. Lasted less than 6 months.