Genuine Makita Gear Assembly — part number 126179-0 — a complete gear/planetary gearbox assembly designed to restore the drivetrain between the motor and chuck on select Makita LXT brushless drills.
This original Makita unit is the full gear assembly (planetary gearbox) used in compatible Makita models such as DHP459 and BHP459, so you get the correct fit and alignment without fuss.
Sold as a single, ready-to-install assembly, it replaces the internal gear set and housing to return smooth torque transfer and reliable shifting between speed ranges—an essential choice when searching for Makita parts for a straightforward repair.
A compact, direct replacement in the tool’s gearbox housing, this unit is listed among common power tool parts for the DHP459/BHP459 lineup and installs using the original mounting points and fasteners.
Jump straight to the Makita spare parts diagrams:
Browse our full range of Makita drill parts.
