Genuine Makita replacement O‑ring 213262‑3 (listed as "O RING 18 / 5005BA") — a small rubber sealing ring used in Makita tool assemblies where an 18‑size O‑ring is required.
This is the rubber seal used to stop air or fluid leaks and to keep moving parts seated in pistons, sleeves and similar housings; it’s the Makita "O RING 18" size commonly shown on parts diagrams.
Example fitment (for reference): appears in Makita parts diagrams and lists for models such as 5005BA (circular saw), HR3200C (rotary hammer), 6905H (impact driver), BFR/BFS autofeed screwdriver variants (for example BFR750 / BFR440 / BFR540 / BFR550) and several AN-series nailers (AN901, AN942, AN943), among others.
What you get: a direct-fit, original Makita rubber O‑ring (part no. 213262‑3) sized and referenced exactly for the Makita assemblies that call for "O RING 18" — replace a torn, hardened or missing ring with this part to restore proper sealing and function.
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