Original Makita 213522-3 — O‑ring “36” (replacement seal) designed for the Makita HR5001C SDS‑Max rotary hammer. This genuine Makita rubber O‑ring is the seal called out in the HR5001C parts diagram and is listed as O‑Ring 36 in the Makita parts breakdown.
Why this part matters: the 213522-3 restores the airtight/pneumatic seal inside the hammer’s mechanism so compression and lubrication stay where they belong, preventing loss of hammering power and premature wear. It’s a purpose‑made rubber seal (listed as size “36” by Makita), supplied as a single replacement item so you can get the tool back to service quickly.
Quick specifics: listed as O‑Ring 36 (Makita part no. 213522-3), genuine Makita construction, sold individually — fits the Makita HR5001C model per the official parts listing. If you’re repairing that rotary hammer this is the direct replacement called out in the diagram.
This simple, low‑cost power tool parts replacement gives you a reliable seal and helps avoid more extensive repairs down the line — fit it in minutes during routine maintenance to restore proper hammer performance.
Jump straight to the Makita spare parts diagrams:
Browse our full range of Makita hammer drill parts.
