12 Valve Billet Rear Freeze Plug fits Cummins

Fits 1989 to 2002 12 & 24 Valve 5.9L Cummins engine block. 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.

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