Makita Genuine 643954-4 Carbon Brush Holder Cap for Cordless Drills

The Carbon Brush Holder Cap (MPN 643954-4) is a genuine Makita replacement part designed to secure carbon brushes in selected cordless drills. Manufactured from heat-resistant moulded polymer in a black finish, this slotted screw cap maintains reliable electrical contact between the carbon brush and motor whilst helping to protect against dust ingress. The cap threads directly into the brush holder to keep the carbon brush firmly seated, supporting consistent performance under load and reducing the risk of intermittent power. Its durable construction withstands the heat generated during operation, whilst the correct thread profile ensures a secure, rattle-free fit that matches the original Makita