Description
Overview:
This Genuine Makita brush holder (MPN 643882-3) is a service part for selected Makita cordless circular saws, including BHS630 and BSS610. It houses and guides the carbon brushes, keeping steady contact with the motor commutator to deliver consistent power. The assembly is built from heat‐resistant polymer with copper alloy terminals and spring pressure to handle the electrical load and temperature of heavy cutting. Replacing a worn, cracked, or heat‐damaged holder restores reliable starting, torque, and runtime, and helps protect the armature and brushes from premature wear. Designed to match the original footprint, it fits neatly into the motor housing for a straightforward swap during routine maintenance or repair on site or in the workshop.
Key Features:
- Genuine Makita OEM part for assured fit and performance (MPN 643882-3)
- Compatible with Makita BHS630 and BSS610 cordless circular saws
- Heat‐resistant body with copper alloy contacts and spring pressure for stable brush contact
- Maintains consistent electrical connection to reduce arcing and brush wear
- Restores smooth start‐up, steady power delivery, and cutting accuracy
- Direct replacement matching the original dimensions for easy installation
- Durable construction suited to regular trade and DIY use
- Helps extend motor life when paired with correctly sized carbon brushes
- Useful preventive maintenance item to address intermittent power or sparking
- Replaces previous numbers 643814-0, 6438140, 6438823
Typical Applications:
Routine servicing and repair of Makita cordless circular saws used for timber framing, sheet materials, trim work, and general site cutting. Ideal when diagnosing erratic speed, sparking, or excessive brush wear. Suitable for keeping tools reliable on construction sites, in workshops, and for home renovation tasks.
Also known as:
Brush retainer, carbon brush carrier, motor brush cage, commutator brush block, brush housing, motor brush assembly.
Fits Models:
BHS630, BSS610
Alternate Part Numbers:
643814-0, 6438140, 6438823
