Makita 331487-8 Spare Part - IMPACT BOLT GUIDE HM1100C

Genuine Makita part 331487-8 — Impact Bolt Guide. Designed as the precision guide that locates and channels the impact bolt inside the cylinder assembly of Makita demolition hammers, this original Makita guide restores correct alignment between the bolt and sleeve so the hammer delivers consistent blows and reduces wear on the sleeve and bolt.

This part is listed for the Makita HM1100C demolition hammer. It mates with the tool’s sleeve/sleeve‑guide assembly.

Sold as the single replacement guide (Makita part no. 331487‑8), it’s a direct-fit genuine Makita component intended to drop into the sleeve area of the hammer so the impact bolt runs true again — a simple, targeted repair if the original guide is worn, cracked, or missing.

Jump straight to the Makita spare parts diagrams:

• Makita HM1100C Parts

Browse our full range of Makita hammer drill parts.