Original Makita lock lever (part number 454945‑8) — a direct replacement component that secures the slide‑door/magazine assembly on Makita brad nailers.
This small but critical lock lever mounts to the slide door and works with the magazine pin and compression spring to hold the pusher/driver assembly in place; the repair manual shows removing the pin (Pin 3) to extract and replace the lock lever during disassembly.
Fits Makita nailer such as DBN500, DBN500ZJ also models XNB01 / XNB01Z.
If the original lever is bent, worn or broken, this genuine Makita 454945‑8 restores the magazine locking action so your nailer cycles and feeds correctly; it’s supplied as the single replacement lever shown in the parts breakdowns.
Jump straight to the Makita spare parts diagrams:
