Mercury Command Thrust Basic Gearcase Housing 8M0227984

Mercury Command Thrust Basic Gearcase Housing 8M0227984 is a genuine Mercury OEM replacement housing for select Command Thrust (CT) gearcase applications. It forms the main housing for the gears, propeller shaft, bearings, seals, shift components, and other internal lower-unit components.

Verified applications include select 115 HP EFI Pro XS FourStroke outboards equipped with the 2.38:1 Command Thrust gearcase. Mercury parts breakdowns show this housing alongside both Long and X-Long Command Thrust complete gearcases.

This is the basic gearcase housing, not a complete lower unit. Internal components such as the forward/pinion gear set, bearings, clutch, shift components, propeller shaft, seals, and related hardware are serviced separately.

Supersedes/Replaces: 8M0145314

Because Mercury offers both standard and Command Thrust gearcases within the same engine families, the engine serial number and original gearcase configuration should be confirmed before ordering.

To Confirm Compatibility: Contact our team with your engine serial number at (727) 596-5929 before ordering.