Makita part 187998-9 — Motor Housing Set (genuine Makita). Exact replacement motor housing assembly designed to restore the gearbox/motor enclosure on compatible Makita 18 V angle grinders; listed by Makita as "MOTOR HOUSING SET" under part number 187998-9.
Fits several Makita compact / brushless angle-grinder models — for example DGA504 (125 mm disc), DGA506 (125 mm disc), DGA454 (115 mm disc) — check your model plate to confirm disc size and model code before ordering.
What’s included / key details: the two-piece motor housing assembly provides the left and right housing halves with the internal mounting bosses and molded screw locations needed to secure the motor/stator and switch components; the parts drawing's show the housing set includes the small rubber pins used for isolation (Makita part 263005-3) where applicable. This genuine Makita replacement is a straightforward way to repair the body of your grinder without replacing the core motor or gearbox — a practical choice when fixing worn or cracked housings among other power tool parts.
Notes: confirm your grinder’s model number (on the nameplate) matches one of the supported models before installing; the housing is sold as the housing set identified above (Makita part 187998-9).
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