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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Well built!
Great product and well built/machined!
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Item worked like it should.
Fitment was like stock. Looks better won't rust.
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Billet thermostat
Nice quality piece, machined to proper specs for tight hose fit and to replace that stamped leaky stocker. Thanks.
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Perfect fit and finish
Another high quality American made part by RiffRaff. Clay is a perfectionist and it shows in the parts he sell and makes ! If you still have a sheet metal thermostat housing this billet one is a must do.
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BILLET THERMOSTAT HOUSING
SUPER CLEAN LOOKING PART. SEALS EASY WITH JUST ORING ON THERMOSTAT.NO LEAKS.
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Great Upgrade from Factory!
My factory neck was getting pitted and starting to seep coolant, this looks great and sealed everything back up!
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Riffraff thermostat housing
Exactly what is needed there. Finished the stainless injector cups instalation. Decided to change the thermostat before filling the coolant. Found a hole in the original housing that had rusted through. I'm pretty sure I won't have to worry about anymore.
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Thermostat housing
I got mine in red and it looks amazing on there and will always lasts way longer than the factory one highly recommended
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Perfect Solution
This is the solution to the cheap stamped OEM piece that leaks. This part should outlast the truck, and will look good while doing it.






