Makita 257283-5 Spare Part - RING 38 HR4511C

Makita part 257283-5 — Ring 38 (original Makita) — direct replacement retaining ring for Makita SDS‑MAX rotary hammers. This hardened metal ring (designated “Ring 38”) secures the chuck/retainer assembly and replaces a lost or worn snap/retaining ring to restore correct tool retention and bit seating. Fits Makita HR4510C and HR4511C rotary hammer models.

Quick notes for installation: the part is a 38 mm series retaining ring used inside the chuck/tool‑retainer area — small, low‑profile, and installed into the matching groove in the barrel assembly to hold the tool retainer in place. Replace the ring when the retainer or bit binding becomes loose or the original ring is visibly deformed.

Part number: 257283-5 — genuine Makita replacement part; order if you need the original fit and function for the HR4510C / HR4511C service.

Jump straight to the Makita spare parts diagrams:

• Makita HR4510C Parts
• Makita HR4511C Parts

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