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Your cart is empty.Premium aftermarket replacement parts for Ford and Lincoln vehicles, Tested to provide performance and long-life reliability. labor included and no commercial exceptions.
Diesel tech.
2025-08-26 18:17:24
I like the fit, it comes with the gasket, and it works great no leaks no overheating. Runs at 175 degrees
doxiemom
2025-05-21 18:20:41
Used this in a 7.3 ford F350 when replacing the water pump. The thermostat is working great with the new Gates water pump. This truck hauls horses in the mountains, so it needs to be reliable.
R
2025-04-21 18:50:45
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 locksSocket Wrench (8mm and 1/2" I believe...)Putty knifeFlat ScrewdriverDirections: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 mess2) Remove the upper radiator hose3) Unbolt the three bolts around the housing4) Remove the old one, pry it with a screwdriver if necessary5) Scrape crud off the sealing platform making sure it doesn't fall into the coolant6) 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 possible8) Fill coolant, check for leaks, test drive, check for leaks
B. Johnson
2025-04-16 14:55:46
Fit fine and did not leak. Came with proper o ring gasket.
Michael A. Womack
2025-03-29 10:28:48
The thermostat was installed and working like a charm.
1988scotsdale
2025-03-19 15:36:23
Engine runs a little cooler. I have not towed a real load since installing it. It is made differently than the cheaper Advance Auto ones. The A/C seems to be cooler. If you tow, spend the extra money. It took a couple of days to get it from Amazon.
Jack
2025-03-08 17:29:31
This part fit my 1996 Ford F250 Powerstroke and was easy to install. Unfortunately replacing the thermostat did not solve the problem of a failed temperature gauge. However, after almost 20 years I didn't mind installing a new part.
Michael Zimmerman
2025-02-24 16:01:51
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
Ken Larson
2025-02-13 11:29:02
No problem with the installation
Ryan
2025-01-03 10:54:33
Factory parts always fit and function better, this is no exception to that rule
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