Carbon Brush Set Makita M191963-2 CB-303, 2 pieces, replacement brushes for power tools

Replacement carbon brush set Makita CB-303 (2 pieces) designed as service parts for compatible Makita power tools. These carbon brushes provide electrical contact between the motor commutator and the armature, allowing current transfer required for motor operation. Supplied as a pair, the set is intended for periodic maintenance and timely replacement of worn brushes to help maintain output and reduce arcing in brushed motors.

Advantages

The carbon brushes are manufactured to match the form and function expected for the CB-303 type, enabling straightforward replacement without modifying the motor. Using matched brush pairs ensures even wear and consistent contact pressure, which supports stable motor performance and reduces electrical noise. The replacement brushes are suitable for routine maintenance cycles and help prolong the service life of applicable power tools when replaced at recommended intervals.

Suitable for

• Routine maintenance and brush replacement on compatible Makita hand-held power tools
• Restoring motor performance where worn or damaged brushes cause reduced power or increased sparking
• Workshops and service centres performing preventative upkeep of brushed electric motors

Key specifications

• Set composition: 2 carbon brushes (paired)
• Material: conductive carbon/graphite compound designed for motor commutators
• Application: for use in compatible brushed electric motors of handheld power tools
• Function: provides electrical contact and current conduction to the armature
• Intended use: wear part for periodic replacement during maintenance

How to use

Before replacing brushes, disconnect the tool from the power source and remove the battery if applicable. Access the brush holders according to the tool manufacturer’s instructions, remove the old brushes and inspect the commutator for excessive wear or damage. Fit the new carbon brushes in the correct orientation and secure any spring clips or holders provided. Reassemble the tool, restore power, and run the motor briefly to seat the brushes; listen for consistent operation and check for reduced sparking.

Usage recommendations

Replace both brushes at the same time to maintain balanced contact and even wear. Inspect brushes periodically during heavy use and replace when carbon length is near wear limit or when performance issues arise. If unusual sparking or commutator damage is present, consult a qualified service technician before continuing use.