OMC 0979855 979855 0980483 980483 Stringer Upper Gear Set 19:20 140hp 3.0L 73-77 75hp 911637 / 0911637 Thermostat Housing

911637 / 0911637 Thermostat Housing To Manifold Starboard

but there is some wear like all used couplers

140 5327663 THRU 5625107 (MERCURY)

so those fittings are still installed

OMC 0979855 979855 0980483 980483 Stringer Upper Gear Set 19:20 140hp 3.0L 73-77 75hp 911637 / 0911637 Thermostat HousingItem Details Found on OMC Stringer GM Chevy 3. 0L 140hp 4cyl Sterndrive upper units from 1973 1977 Upper Unit Gearcase Gear Set Pinion Gear (20 Teeth) 979855 0979855 Shaft Gear & Bearing Assembly (19 Teeth) 980483 0980483 "19: 20 Ratio" The pressed on bearing on these Should probably be replaced but this is up to your discretion. This listing is intended to be focused on the gears only, if you are performing this kind of replacement, it is always