Genuine Makita 232347-6 — Conical compression spring (designation 21-29 RH01) built to original Makita specifications; a hardened spring-steel, tapered (conical) compression spring that restores correct rebound and seating in the hammer/piston stack.

This spring supplies the controlled compression and rebound used in Makita rotary/combination hammers to maintain striking force and reduce internal play; replace if the coil is worn, flattened, or corroded.

Example compatible models include DHR182, DHR182ZJ, DHR171, DHR183, HR1841F, HR1840, HR166D, HR140D and HR010G — a handy spare if you’re servicing your tool and want original Makita reliability. Makita parts like this spring are small but critical to correct hammer action.

Jump straight to the Makita spare parts diagrams:

• Makita DHR171 Parts
• Makita DHR182 Parts
• Makita DHR183 Parts
• Makita HR010G Parts
• Makita HR140D Parts
• Makita HR166D Parts
• Makita HR1840 Parts
• Makita HR1841F Parts

Browse our full range of Makita hammer drill parts.