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6.7L Cummins Miscellaneous – Cup Plug – Install

Apply a 2-mm [1/16-in] bead of cup plug sealant, Part Number 3375068, or equivalent, to the outside
circumference of the cup plug and the inside circumference of the cup plug bore.
NOTE: Do not install a used cup plug. Discard all plugs after removal.

Install the cup plug with the appropriate cup plug driver.

The cup plug must be installed with the edge of the cup plug 0.5 to 1.0 mm (0.020 to 0.040 in] deeper than the
leading chamfer of the bore.