Makita 451037-4 — Genuine Makita switch button (handle push‑button) for mitre saws. This small, hard‑wearing moulded plastic actuator is the exact replacement that snaps into the saw’s handle and operates the internal power switch, restoring positive start/stop actuation and the handle’s lock‑off feel. It’s sold as a single replacement button and installs with basic hand tools — no housing modification required.

Fits (example models): Makita LS1016, LS1016L, LS1019, LS1019L, LS1216, LS1216L and related LS1xxx series mitre saws.

Notes: listed as the direct replacement for the factory switch button (sometimes shown replacing part 416404‑0) and commonly referenced in Makita spare/parts diagrams for the LS1016/LS1019/LS1216 family.

If your saw’s start/stop button is cracked, sticking, or missing, this original Makita part restores correct switch engagement and helps keep the saw operating safely and predictably.

Browse our full range of Makita mitre saw parts.