Makita 125485-0 — Genuine Makita gear assembly (gear ass'y) for 18 V combi/hammer drills. This complete gearbox replaces the internal gear cluster and housing used in Makita 18 V models such as 8391D, BHP453, DHP453 and HP457D.
Supplied as the full gear assembly (ready to install), it restores worn or damaged transmission components—first/second‑speed gearing and related internals—so you can return the drill to normal shifting and torque performance. The part is listed in Makita parts diagrams and service listings as part number 125485-0 (Gear Ass'y).
Notes: designed for the Makita 18 V combi/drill above; confirm your tool’s model number matches one of the listed models before fitting.
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