Genuine Makita O‑Ring 63 (part 213722-5) — a direct replacement sealing ring designed for Makita BTW450/DTW450 family impact wrenches.
Details: nominal inner diameter 63 mm (listed as “O RING 63”), molded from a durable rubber elastomer to restore the pressure/oil seal in the gearbox/air chamber and prevent leaks or loss of performance. Sold as a single replacement sealing ring.
Example compatible models (illustrative): Makita BTW450 and DTW450 series (including common variants such as DTW450RFE/DTW450Z/DTW450RMJ and related DTW/BTW models where the O‑ring 63 is specified). Ideal if you’re repairing a Makita impact wrench and need a genuine Makita seal to finish the job.
This small, inexpensive part is an easy install and a reliable way to stop leaks and restore tool function — one of the essential parts for power tools to keep a Makita impact wrench working properly.
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