6.7L Cummins Lubricating Oil System – Lubricating Oil Pressure Regulator (Main Rifle) – Remove

Remove the pressure regulator, valve plug, spring, and plunger.
Service Tip: The plunger normally can be removed by inserting a finger into the plunger bore until snug and
pulling up. If the plunger can not be removed in this manner, the plunger is probably stuck and will require
removal of the housing.