Motorcraft RT1201 Thermostat

I like the fit, it comes with the gasket, and it works great no leaks no overheating. Runs at 175 degrees

If you need a thermostat for your 1999-2003 Ford 7.3, this is it. I've been operating with a bad thermostat for three years and decided after a very cold drive it needed to be replaced ASAP. It's easy to replace and doesn't require any extra seals. I would recommend buying a new housing (Motorcraft RH63) in addition to this. Also, if you have an upper radiator hose that goes through the serpentine belt, this will be a good time to replace it with the one that goes around (Motorcraft KM4351). Tools: Channel locks Socket Wrench (8mm and 1/2" I believe...) Putty knife Flat Screwdriver Directions: 1) Drain roughly a gallon or two of coolant, squeeze the upper hose to tell when its down to where you won't make a mess 2) Remove the upper radiator hose 3) Unbolt the three bolts around the housing 4) Remove the old one, pry it with a screwdriver if necessary 5) Scrape crud off the sealing platform making sure it doesn't fall into the coolant 6) Put the new one in, put the housing on and torque to 20 ft-lb. No need for RTV, but you can put a little if you want. 7) Spray a little (keyword little) wd40 on the housing to make putting the upper hose on possible 8) Fill coolant, check for leaks, test drive, check for leaks

OEM replacement. Works as it should.

OEM fit for 2001 7.3l. Just as I needed. Comes with gasket

Installed on my 2002 F250 7.3 seems to work well so far shipping was quick.

Termostato de repuesto genuino, se ajusta sin problema y regula bien la temperatura del motor. Una pieza OEM que da más tranquilidad que genéricos.

Save some money on buying OEM ford parts not at Ford. This was delivered quick and OEM thermostat for my 2003 7.3L Ford.

Let me begin by saying, I went through 3 thermostats before I bought this OEM Ford for the 7.3. This thermostat has been redesigned and it is the only one that did not leak. I also opted for the billet housing, getting rid of the stock rusty metal one, the billet also comes with another o-ring, which double seals the crappy Ford design. Buy this thermostat and the billet housing and you're good to go

No problem with the installation

Factory parts always fit and function better, this is no exception to that rule