Riffraff Diesel 7.3L Billet Thermostat Housing 99-03 7.3L Powerstroke
Replace your leaking, rusty 99-03 7.3L thermostat housing with an improved design! We have machined these housings out of billet aluminum and anodized them for a great looking and long lasting finish. Stainless Steel hardware is also provided.
100% Made in the USA!

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Stops leaks!
For not a lot more in cost over the stock thermostat housing, you can get this one that will eliminate leaks when used with a Motorcraft thermostat. I've installed these on two trucks now and the leaks are gone...
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Quality
Really cant say enough about the quality these things have. Sealed right up and looks great.
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No Leaks and Looks great
This solved my leak issues and the part looks amazing.
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Great
Great product at a great price. No more leak and won’t happen again.
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Perfect fit
Excellent build quality and perfect fit on my 99 f250 super duty 7.3 diesel. Also looks great!
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Awesome
Fits perfect looks great highly recommend if your doing water pump. As always riff raff never disappoints.
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BILLET THERMOSTAT HOUSING
Perfect fit for my 1999 f250 super duty 7.3 power stroke. Looks great. Also replaced the thermostat. Which was perfect timing since the seal on the original was starting to fall apart.
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Billet thermostat housing
I bought the Riffraff billet thermostat housing in red for my mom's NBS 7.3l. The fitment is perfect and the red looks sharp!
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Billet Thermostat Housing
Great solution and upgrade to the original steel design that tended to rust.






