Drain Screw – Fits Mercury/Mariner Outboards & MerCruiser Stern Drives (Replaces 10-79953, 10-79953A2) 90HP this impeller kit only fits

this impeller kit only fits pumps that use LONG screws for the housing cover

Disconnect the boat's battery and trim the sterndrive to the full "UP" position

120S-E 3586496

this is intentional

Drain Screw – Fits Mercury/Mariner Outboards & MerCruiser Stern Drives (Replaces 10-79953, 10-79953A2) 90HP this impeller kit only fitsProduct Details This high quality Drain Screw Fits Mercury Mariner Outboards & MerCruiser Stern Drives serves as a crucial replacement for maintaining your gear case. It is designed for broad compatibility, fitting most Mercury Mariner outboards and MerCruiser stern drives (including I, R, MR, Alpha One, TR, and TRS series) that use a 3 8 16 drain screw. It also fits various Chrysler, Force, and US Marine models with the same thread specification,