The Stock 7.3 thermostat housings are notorious for leaking coolant. They are made from a thin press formed sheet metal that rusts, pits and gets deformed by the bolts.
To fix the issue we have machined a a new piece from 6061 aluminum. This lets us build in a nice thick flange that will not flex or bend and also is much less susceptible to corrosion then steel. The kit comes with a new thicker oring as well as new stainless fasteners.
- Machined from 6061 billet for maximum strength.
- Chrome plated for greater corrosion resistance as well as great looks.
- Thicker oring for even better seal.
- New stainless bolts and washers for a excellent finished look.