Makita 232346-8 Spare Part - COMPRESSION SPRING 8 HR166D

Genuine Makita replacement compression spring, part no. 232346-8 — labelled “Compression Spring 8” and intended as the small axial spring used in the rotary/impact mechanism of Makita cordless rotary hammers.

This spring fits into the piston/impact sub‑assembly (it sits next to the spring guide and piston components in the exploded parts view), where it provides the return/preload force needed for reliable hammer action.

Example models that use this part include HR140D, HR166D and DHR171.

Compact and ready to install — if your hammer is showing reduced impact or a loose-feeling striker, replacing part 232346-8 restores the correct spring pressure inside the piston assembly. This item is a direct Makita spare and is useful when you need a specific replacement from your power tool parts collection.

Jump straight to the Makita spare parts diagrams:

• Makita DHR171 Parts
• Makita HR140D Parts
• Makita HR166D Parts

Browse our full range of Makita hammer drill parts.