This gearcase seal kit replaces OE#: 26-77066A1 and fits 3.9-9.8 HP Mercury, Mariner, and Force outboard lower units from 1975-1986. FSM030 878408A1 XL1440 Fit... This gearcase seal kit replaces OE#: 26-77066A1 and fits 3.9-9.8 HP Mercury, Mariner, and Force outboard lower units from 1975-1986. This gearcase seal kit replaces OE#: 26-77066A1 and fits 3.9-9.8 HP Mercury, Mariner, and Force outboard lower units from 1975-1986. SEI MARINE PRODUCTS - agenda necochense Navy Seal Kit Gearcase Seal Kit Fit Mercury Mariner Force 26-77066A1 3.9,4,4.5,6 Mercury Outboard Lower Unit Bordallo Pinheiro Cabbage Green Dessert Plate | Sur La Table
