2003-2007 F250 & F350 6.0L Sinister Diesel Billet Thermostat Housing SD-THERMO-6.0

Prevents Housing Coolant Leaks for Improved Reliability

The stock thermostat housing in the 6.0L Powerstroke has been consistently blamed for coolant leaks that can overheat the engine in your 2003 - 2007 F250 or F350 6.0L Powerstroke. One of the better solutions on the market is Sinister Diesel's Billet Aluminum Thermostat Housing, complete with drop-in assembly for easy installation. The billet aluminum material is almost entirely resistant to cracking and warping due to its stout design, construction, and premium material. Sinister's billet thermostat housing is a smart and easy upgrade if you want to keep your 6.0L Powerstroke running at its best for years to come.

CNC Machined Billet Aluminum Design that Accepts the Stock Thermostat

The thermostat housing was carefully designed by Sinister Diesel to drop right into place of your factory housing while providing a huge improvement in reliability. Unlike the stock housing which was made from low-quality stamped steel which is prone to warping, Sinister's housing is made from CNC machined 6061 billet aluminum that's lighter, stronger, and more heat-resistant. Sinister tops each of their thermostat housings off with an anodized blue finish to protect against corrosion and keep the housing seated and fitted for the long run. The housing is entirely compatible with your stock thermostat, making it a hassle-free upgrade.