Riff Raff always has the best products with perfect fitment. This housing is no exception.

Replaced a rusty outlet when changing out the thermostat and upper hose. Worked great without any issues.

Great part. Great fitment. Unbeatable price. Super fast shipping. There is only one place to go for your PowerStroke. The part went on great, no leaks. No problems.

After multiple failed attempts and leaks with new parts house thermostat and housing I decided to spend the money and get the billet housing. With coolant being nearly $20/gal I should have done this mod first! No leaks what so ever...very nice piece. I would recommend the oem motorcraft thermostat as well with the built in gasket. All in all very pleased. My only gripe is the hex head bolts but that's neither here nor there. I was told it was a 3/16 hex, but I found a 5mm to fit more snugly.

Buy this and it’s for life. Done. I’m out..

was a great replacement for that old steel stock unit.

Against every warning, I went cheap and bought a T-Stat housing from one of the common automotive box shops. 2 failed attempts to get a good seal with RTV later, I finally did what I should have done in the first place. This thing epitomizes the strength and reliability of the engine that it was designed for. Save yourself the extra time and wasted money.

My stock steel housing was rusting and I wondered when then leaks would start. Very nice improvement over stock. It's a shame it's not very viseable. Very well built.

Do you use the OEM gasket or none?