Cummins Billet Freeze Plugs that don’t leak! After seeing many center bolt style billet freeze plugs leak we felt the need to come up with our own design. Our 3 bolt system eliminated freeze plug warping and leaking.
– 3 Side Billet Freeze Plugs
– 1 Front Billet Freeze Plug
– HD O-rings
– Stainless Hardware
* Billet Freeze Plugs require drill and tapping of the water jacket. This can be done by hand with the motor in the truck but is recommended to be done while motor is disassembled.