For over two decades, Keating Machine has been producing high-quality billet side freeze plugs for Cummins engines, earning a reputation as one of the original innovators in the market. With our years of experience and dedication to making the best freeze plugs, each part is precision-machined to deliver reliable performance and long-term durability. Fits 1989 to 2002 12 & 24 Valve 5.9L Cummins engine block. Black anodized billet rear freeze plug features 1/2″ npt threaded center hole with plug (can be removed to accommodate coolant bypass). Stainless bolts, o-ring and hardware to mount and seal plug is included. Helps prevent blow out at high rpm’s, a weakness of stock freeze plugs. Also available without 1/2″ npt bypass port. Click For Instructions
