Original Makita compression spring, part number 233387-7 — sold as "Compression Spring 52" and supplied as an original Makita replacement for the spring guide.
Fits several Makita demolition/rotary-hammer models (examples: HM0860C, HM0870C, HM0871C, HM0830/HM0830T, HM001G and GMH01Z) — check your tool's exploded diagram for the matching part reference before installation.
A compact helical compression spring designed to seat inside the tool’s spring guide (reference no. 9 on many Makita parts diagrams); it’s listed with the designation "52" (the number corresponds to the spring size in Makita’s parts listings and implies roughly 52 mm free length). (inferred from Makita parts listings).
Supplied as a single, genuine Makita spare suitable when you need the correct fit and function — a simple swap restores the correct preload and movement in the tool’s striker/spring assembly.
Jump straight to the Makita spare parts diagrams:
Browse our full range of Makita hammer drill parts.
