Description
Overview:
The Carbon Brush Holder Cap (MPN 643954-4) is a Genuine Makita replacement part for selected cordless tools, including the 8443D and 6347D drills. Made from hardwearing, heat-resistant moulded polymer in a black finish, the cap screws into the brush holder to secure the carbon brush and maintain reliable electrical contact with the motor. A sound cap helps limit dust ingress, keeps the brush seated correctly, and supports consistent performance under load. This slotted, threaded cap is ideal when the original is worn, cracked or missing, helping to prolong tool life and reduce downtime. It is engineered to match the original Makita thread and head profile for a straightforward swap and a reliable, repeatable fit on the specified models.
Key Features:
- Genuine Makita part for assured compatibility and reliability
- Durable, heat-resistant polymer construction for long service life
- Slotted screw cap design for quick fitting with a flat‐blade screwdriver
- Maintains firm brush seating and stable electrical contact
- Helps protect the brush cavity from dust and debris
- Correct thread and head profile for a secure, rattle‐free fit
- Supports smooth motor operation and reduces the risk of intermittent power
- Simple, low-cost maintenance item to keep tools working efficiently
Typical Applications:
Routine servicing and repairs on compatible Makita cordless tools where the original brush cap is damaged, worn or lost. Common during carbon brush changes, periodic maintenance, or when addressing poor contact issues. Suitable for drills, grinders, plate jointers and compact chainsaws in workshop, site, and garden settings where dependable tool performance is required.
Also known as:
Carbon brush cover, motor brush cap, brush screw cap, brush holder cover, end cap for motor brushes.
Fits Models:
6343D, 6347D, 8443D, BDF460, BDF46D, BGA450, BGA452, BHP460, BPJ140, BPJ1801, BUC121, BUC122, DPJ140RFE, DPJ140Z, DPJ180RFE, DPJ180Z
Alternate Part Numbers:
6439544
Product Specifications
| L&S Part No. | 643954-4 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 643954-4 |
| Unit of Sale | 1 |
| Applications | 6343D, 6347D, 8443D, BDF460, BDF46D, BGA450, BGA452, BHP460, BPJ140, BPJ1801, BUC121, BUC122, DPJ140RFE, DPJ140Z, DPJ180RFE, DPJ180Z |
| Machine Type | Drills |
| Fits Brands | Makita |
| Fits Models | 6343D | 6347D | BDF460 | BHP460 | BGA450 | BGA452 | DPJ180RFE | DPJ140Z | DPJ180Z | DPJ140RFE |
