Original Makita gear housing cover (part no. 159547-2) — direct replacement for the gear case on the Makita 8406C diamond core drill. This cover protects the internal gear assembly and sealing surfaces from dust and slurry, restores the correct fit and alignment of the change plate and gear components, and is listed as the genuine Makita replacement for model 8406C.
Key details:
- Part: Gear housing cover, Makita part no. 159547-2 (original Makita).
- Fits: Makita 8406C (diamond core drill) as the replacement cover.
- Function: Protects gears and mating seal surfaces; intended to be used with the gear-housing seal (Makita part 331417-9) and the original housing hardware for a correct, leak-free fit.
If your 8406C has a cracked, warped or missing gear cover this original Makita component restores the tool’s mechanical protection and alignment so the gearbox and change mechanism operate as designed.
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