Makita 213512-6 — genuine Makita O‑ring 39 (nominal 39 mm). This is the rubber sealing ring used in Makita circular saws and other cutting/rotary tools to restore a dust- and debris-resistant seal around spindles and housings; it’s supplied as the single replacement O‑ring (part no. 213512‑6).
Typical models this part is used on include BSS610 / BSS611 circular saws, SP6000 / CA5000 plunge/guide saws, various DHS/DSS series 165–190 mm saws and some HK/HK‑series hammers (for example HK1800/HK1810). Use this part when the existing seal is cracked, flattened or missing to stop rubbing, vibration-related wear and dust ingress.
Simple to fit — remove the old ring from its groove and pop the new 213512‑6 into place; because it’s a dedicated Makita replacement the fit and profile match the original housing tolerances.
(If you need a close-up parts diagram for your exact model to confirm position number before ordering, the Makita parts breakdowns for each model show 213512‑6 listed as O‑RING 39.)
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