Billet side freeze plug features recess for bolt head.

For 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 Dodge 5.9L Cummins 12V

Billet side freeze plug features recess for bolt head, includes o-ring freeze plug seal and copper sealing washer with Stainless Steel cap head Allen bolt.