Install the new fuel filter, minding the orientation of the locking clasp and the o-ring. The o-ring side of the fuel filter is not inserted into the cap.
The fuel filter should lock into the cap. Lightly coat both o-rings (cap and bottom of filter) of the new fuel filter with clean motor oil before installing into the Horizontal Fuel Conditioning Module. Torque cap to 19 lb-ft (25 N-m).