Makita 221482-5 — Genuine Makita spur gear (8-tooth) engineered for rotary hammer drive trains. This original Makita replacement part (Ref. No. 37) restores the mating gear in the transmission of HR140D, HR166D and DHR171 rotary hammers, returning smooth impact and rotation where a worn or damaged gear is causing play or drive loss. Precise fit to the factory parts diagram and manufactured to Makita specifications for correct alignment and reliable service life.

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