Description
Overview:
This Brush Holder Cap is a genuine Makita replacement part for sealing and protecting the carbon brush holder on heavy‐duty electric tools. Made from a durable, heat‐resistant polymer, it keeps dust and debris out of the brush chamber and helps maintain stable electrical contact for consistent motor performance. It is designed for Makita demolition hammers such as the HM1800 and HM1810, and is also compatible with selected Makita cutters including the 4112HS and 4114S. Replacing a worn, cracked, or missing cap restores reliability, supports correct brush function, and prolongs tool life under tough site conditions. Genuine status: Genuine Makita Part. OEM/MPN: 643710-2.
Key Features:
- Genuine Makita OEM part for assured compatibility and reliability (MPN 643710-2)
- Durable polymer construction resists heat, vibration, and impact in demanding use
- Screw-in cap design for quick removal and refitting during routine servicing
- Helps protect the brush holder from dust, debris, and moisture ingress
- Supports correct brush contact to reduce arcing and uneven wear
- Direct replacement with no modification required
- Suitable for HM1800, HM1810, 4112HS, and 4114S tools
- Helps maintain consistent power delivery and tool efficiency
- Built to match the original cap's fit for dependable sealing
Typical Applications:
Used during routine maintenance and repairs of Makita breakers and cutters to replace damaged or missing brush caps. Ideal for site engineers, electricians, and workshop technicians to keep demolition hammers and concrete cutters running reliably on tasks such as breaking concrete, chasing, and cutting masonry, reducing downtime and preserving motor health.
Also known as:
Carbon brush cap, motor brush cap, brush cover, brush holder cap screw, brush end cap, carbon brush cover, service cap for brush holder. Commonly referenced when servicing carbon brushes or restoring the brush chamber seal on compatible Makita tools.
Fits Models:
4112HS, 4114S, HM1800, HM1810
Alternate Part Numbers:
6437102
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