Makita 419018-4 — Change Plate (original Makita) designed for the SDS‑MAX rotary hammer family. This genuine Makita change plate is the stamped/formed plate that secures and positions internal linkages in the hammer mechanism and is sold as the direct replacement for Makita rotary hammers of this series.

Fits Makita HR4001C and closely related SDS‑MAX models such as HR4002, HR4010C and HR4011C.

If your hammer shows play or misalignment in the crank/link area, replacing the 419018-4 change plate restores correct positioning and smooth mechanical action. This is a simple, drop‑in replacement part intended for straightforward service of Makita SDS‑MAX rotary hammers and is listed on Makita parts breakdowns for the HR4001C series.

Note: this listing refers specifically to Makita part number 419018-4 (Change Plate); order the exact number to ensure the original Makita fit. Use genuine Makita parts when servicing your tools to keep OEM tolerances and performance for critical power tool parts.

Jump straight to the Makita spare parts diagrams:

• Makita HR4001C Parts
• Makita HR4002 Parts
• Makita HR4010C Parts
• Makita HR4011C Parts

Browse our full range of Makita hammer drill parts.