Makita 213605-9 — Genuine Makita O‑ring (listed as "O RING 50") designed to restore sealing in pneumatic and cylinder assemblies.
Description: a circular sealing O‑ring specified by Makita as "O RING 50" (50 mm), used in the cylinder/valve area to stop air or gas leaks and return the tool to proper working pressure. It’s the exact replacement called out in Makita parts diagrams for affected tools, so you’re fitting the original Makita component for a clean repair.
Fits (examples): this part appears in Makita parts lists and exploded diagrams for tools such as the AN901 coil nailer and the CC300D / CC301 series. Use these model references to confirm placement in your unit.
Why buy it: replacing the worn or damaged O‑ring with the original Makita 213605-9 restores airtight sealing in the cylinder/valve area, prevents misfires and loss of power, and keeps the tool operating as intended. This genuine Makita part is a straightforward swap-in when the factory O‑ring has hardened, cracked, or been pinched.
Note: listed by Makita as "O RING 50" — confirm the part number 213605‑9 against your tool’s parts diagram before installing.
Jump straight to the Makita spare parts diagrams:
