Bought a truck that had an unbranded aluminum thermostat housing on it and previous owner appeared to have drilled holes in it for some reason? Bought this to replace it. Excellent fit and excellent sealing. High quality.

much better than stock

Although I was ordering a water pump for my '97 F350 I was still able to order this thermostat housing which is actually for the later model SD' a. I still wasn't reverting to the stock housing so some research and another trip to the parts store and I found a hose that worked. It's a little close to the belt but so far no impact and no leaks.

Part come well packaged and was easy to install. Great machine finish and a much beefier part than the weak stock piece. Have been running it for almost 2 years without an issue. Well worth the money for the upgraded reliability.

I have had the cheaper stamped steel housings which seem to always warp and cause leaks. This housing is very solid and seals extremely well. I'm confident its the last one I'll buy.

Had a coolant leak from OEM housing. Tired everything to get it to stop and couldnt. Got the riffraff housing on and zero leak now. As always Riffraff makes a quility replacement. Fit and finish is great.

Very high quality, a must when replacing new water pump, the factory housings are thin and cheaply made

There are a number of these billet thermostat housing on the market. I've looked at each one of them in detail. I selected and purchased the one from Riffraff Diesel as I particularly liked that the holes for the screws were counter bored so that the screws when installed sat just below or level with the flange surface. Additionally, I like that RiffRaff Diesel includes with the thermostat housing the three high quality stainless steel hex head cap screws. Of course the fit and finish was excellent and installation was a breeze. Looking back, I should have bought this Billet Thermostat Housing from RiffRaff Diesel when I first acquired my truck instead of wasting money buying the cheap stamped steel thermostat housing from Ford each time I performed a coolant flush as the Ford OEM housing rusts and corrodes and can't in all practicality be reused.

Simple upgrade and well designed.