Keep it OEM or better! This is what you need!

Works great, don’t consider putting an aftermarket one in your truck.

After struggling with finding a thermostat that would properly seal, I found this one and it sealed perfectly.

Works perfectly, perfect fitment and temperature for your 7.3

I thought I was doing right when I got the 102 degree thermostat, but over the last year my oil temps have been way too high. Switched back to the factory thermostat and couldn't be happier. All my temps have come back down to normal and I am not overheating while towing.

Great price for a oem thermostat with the Navi star water pump.

Perfect fit for my 1999 f250 super duty 7.3 powerstroke diesel.

Perfect oem replacement for cheaper than dealer.

Spend the extra few dollars and buy this one