Genuine Makita O‑Ring 24 (part no. 213380-7) — a nominal 24 mm sealing ring manufactured for Makita rotary hammers and related units.
This rubber O‑ring seals the inner housing/piston area (used where Makita’s service steps call out “O‑Ring 24”), restoring the tool’s pressure and dust seal so the striker and piston operate smoothly. Example fitments include HR2450, HR2440/HR2440F, HR2432, HR2020 / DUR190 and 6805BV — check your model parts list to confirm the same item number.
A direct replacement made to Makita tolerances, this part is ideal when you need a single, reliable component to fix a specific leak or sealing failure. Use this genuine Makita spare when ordering Makita parts to maintain original fit and function in your tool repair, and pair it with the correct greasing and reassembly steps listed in the service diagram to finish the job safely. This small but critical item is a common entry in parts for power tools service diagrams.
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