632K98-1 supersedes older part numbers: 638947-4
Original Makita switch block 632K98-1 — direct replacement switch module for Makita 125 mm angle grinders. This compact switch holder houses the trigger contacts and mounting points used in Makita’s corded grinders; it installs into the original switch cavity and mates with the tool’s existing wiring harness so no modification is needed.
Fits a range of Makita models : GA4540C / GA4540R, GA5040C / GA5040R / GA5041C, GA4040C (125 mm grinders), Use this part to restore reliable on/off function when a grinder won’t start, cuts out, or has an intermittent trigger.
This is the genuine Makita switch block (listed as part number : 632K98-1 in Makita parts diagrams) and is supplied as the complete switch unit for a direct plug‑in replacement — a single unit that returns your tool to original switch mounting and contact configuration.
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