Genuine Makita replacement switch — part no. 651439-6 (internal designation SWITCH GRJ01 / C3JR-4B-2). This is the original Makita on/off switch assembly used as the handle-mounted control in several Makita 40 V XGT rotary hammers and reciprocating saws, offered as the single switch unit for a clean, direct fit into the factory housing.
Key details:
- Part: Makita 651439-6 — SWITCH GRJ01 (also referenced as C3JR-4B-2).
- Function: genuine Makita handle-mounted on/off switch assembly (sold as the switch only).
- Typical fitment (examples): JR001G, JR001GD102, JR002G, HR001G, HR002G, HR003GZ and several HR004/GRH/GRJ series XGT models.
Why this part:
- Direct replacement: installs into the original switch position and restores the tool’s factory control feel and function.
- Supplied as the single switch unit for quick swap-out — ideal when the tool’s handle switch has failed or become intermittent.
Simple reminder: match your tool’s model number to the examples above before ordering and always remove the battery and ensure the tool is powerless before attempting replacement.
Jump straight to the Makita spare parts diagrams:
Browse our full range of Makita reciprocating saw parts. Makita hammer drill parts.
