122910-1P freeze plug helps prevent blow out at high rpm’s.
For 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 5.9L Dodge Cummins 12V
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). Design includes o-ring seal and mounting bolts. Helps prevent blow out at high rpm’s, a weakness of stock freeze plugs. Also available without 1/2 npt bypass port.