1989-2018 Cummins Billet Bolt-On Side Freeze Plug

The bolt- on freeze plugs eliminate the risk of a blown freeze plug due to increased coolant pressure from high RPMs, differences in cooling temperatures, faulty freeze plugs, and more. Each one is CNC machined from 6061 Aluminum and features an o ring gasket for a leak free seal

Depending on the year of your engine, you will need to check how many freeze plugs you need*