Makita 421977-0 — Genuine Makita Rubber Ring 13
Restore a tight seal with this genuine Makita rubber ring (listed by Makita as "RUBBER RING 13", part no. 421977‑0). It’s a small 13 mm rubber sealing ring designed to sit in gear/rotor housings and cover/roller locations where a resilient gasket is required — ideal for replacing a hardened, cracked or missing ring to stop dust or grease from escaping and to keep moving parts running smoothly.
Example models that use this part include Makita grinders and saws in the BGA/DGA and BCS/BJS series, for example BGA452 (DGA452), DGA450, BCS550 (BCS550Z/F) and the straight shear BJS161.
Simple to fit — replace the old ring in the gear/roller cover area with the Makita 421977‑0 to restore the original rubber seal and maintain proper tool performance.
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