Mercury 1643-7406A31 Outboard Gearcase Lower Unit Long shaft 50hp 60hp 70hp 3cyl Steering Helm Parts 387656 / 0387656 Thrust Bearing

387656 / 0387656 Thrust Bearing

They did away with this concept and everything produced since has used a cable that threads from the other direction

Make sure to order a new mating gasket (OMC 908079 / Sierra 18-2912-1)

Used from 1963-1998 on virtually all OMC Cobra / Volvo Penta GM 3

Flywheel Nut: 11-22339

Mercury 1643-7406A31 Outboard Gearcase Lower Unit Long shaft 50hp 60hp 70hp 3cyl Steering Helm Parts 387656 / 0387656 Thrust BearingRemoved from a Mercury Outboard 50hp Inline 3 Cyl. cylinder Two 2 Stroke (6428681 0B122929) Part #'s Lower Gearcase Assembly 1643 7406A31 (Housing Stamped 1643 6458) Functionally Equivalent to the Following Numbers: 1643 9539A3 1643 7406A42 (Mariner) 1643 9539A9 (Mariner) Related Gearcase numbers (Not related to shaft length) 1643 7406A16 1643 7406A41 1643 9539A1 1643 9539T1 1643 9539A8 1643 9539T8 Compatibility Generally found on the 3cyl 2 stroke