Makita 213274-6 — O‑ring 18 (genuine Makita)
Restore the seal in your hammer mechanism with the genuine Makita O‑ring 18 (part no. 213274‑6). This is a black rubber sealing ring made to the original Makita specification (listed as “O RING 18”) — nominal 18 mm size — that sits in the designated O‑ring groove to retain grease and maintain correct compression in the impact assembly, helping the tool deliver consistent impact performance.
Sold as a single replacement ring, the O‑ring installs quickly (no modification required) and is a common service item where older seals have become flattened, cracked, or lost elasticity. The part is referenced on Makita parts diagrams for rotary‑hammer models.
Example models this part fits (examples — check your tool’s parts diagram to confirm fit): HR3000C, HR3550C, HR5201C, HR5210C and HR5211C.
What you get: one genuine Makita replacement O‑ring (213274‑6), ready to drop into the groove to stop leaks, hold grease in place, and restore reliable hammer action.
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