10 years ago I installed the 203* from dieselsite. Ran it for years in Colorado. I just installed the OEM while I was doing other truck stuff. Have only drove it once since then so I don't have any positive or negative to say. Other than the double sided gasket it comes with makes installation easy.

Works great, shipped fast, Riffraff has helped me greatly, I will continue to purchase my parts from riffraff.

Quality motorcraft parts. Riffraff diesel carries the real stuff. Quick shipping and reasonable prices.

Fast delivery on quality parts

Perfect working well and Oem

This is the correct thermostat for your 1999-2003 7.3L Powerstroke. I have tried several other brands and they either ran way too hot, or too cold. OEM is the way to go.

Part arrived fast and very secure. Ford OEM part you can’t go wrong. Perfect fit. Thanks Riff Raff

My original thermostat went over 200k but recently over winter It was running lower on the gauge and less heat out the vents. Now its right back to the center of the gauge and the heat feels like it did when new. Thanks Riff Raff for stocking OEM parts.

Works as it should