Original Makita part 455496-4 — Motor housing for Makita demolition hammers. This genuine Makita motor housing is the correct replacement body that holds the motor, fan and brush/brush-holder area and lines up with the factory mounting bosses and ventilation openings.
Fits Makita HM1812 and HM1802 models (listed as item 455496-4 in Makita parts diagrams).
Practical details: the housing is supplied as the single motor-housing piece shown in Makita parts lists and pairs with the CB‑218 brush (197129‑2) and the nearby baffle/cover components; assembly uses M6 × 25 hex bolts and 4 × 18 tapping screws where shown on the exploded view.
If you need a clean, direct-fit replacement to restore correct alignment and ventilation in your breaker, this original Makita motor housing is the part referenced in Makita parts lists and diagrams used for genuine power tool parts repairs.
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