Original Makita O‑Ring 34 (part no. 213485-3) — a single replacement sealing ring engineered for the piston/cylinder area of Makita demolition hammers.

Fits HM1202, HM1202C and HM1242C models and restores the oil/air-tight seal that prevents hydraulic or pneumatic leakage and preserves full impact performance.

Molded from a durable, heat-resistant rubber compound for repeated service and supplied as an individual part (sold per piece) so you can swap the worn seal quickly during teardown and reassembly.

Keep a spare on hand — Makita parts like this O‑ring are a small, inexpensive repair that stops leaks and gets a hammer back to full power fast.