Makita Genuine 181038-5 Carbon Brush CB105 for Makita HR1800, HR1820 Hammer Drills

The Makita CB-105 Carbon Brush (MPN 181038-5) is a genuine OEM replacement part designed to restore reliable electrical contact in compatible Makita rotary and demolition hammers, including the HR1800 and HR1820.

Manufactured from high-quality carbon-graphite with a conductive lead, this brush maintains stable conductivity between the commutator and armature, helping the motor run smoothly and efficiently under demanding site conditions. Worn carbon brushes are a common cause of arcing, intermittent power loss and reduced torque — fitting a replacement promptly helps protect the motor and commutator from further damage.

Designed for a precise fit in the brush holder, this genuine Makita part offers consistent dimensions and terminals for reliable seating without modification. It is straightforward to fit using standard hand tools, keeping downtime to a minimum on busy job sites. Sold individually, it is typically replaced as a pair to ensure balanced wear and optimal motor performance.

Suitable for contractors and tradespeople carrying out routine maintenance on heavily used rotary hammers and demolition hammers, this brush supports the long-term reliability of tools working at full intensity. It is equally appropriate for workshop servicing and DIY maintenance.

Features and Benefits:
• Genuine Makita OEM part (MPN 181038-5) for correct fit and performance
• High-quality carbon-graphite construction for stable conductivity and low wear
• Helps reduce sparking and overheating, protecting the motor and commutator
• Restores lost power and consistency when original brushes are worn
• Consistent dimensions and terminals for reliable seating in the brush holder
• Straightforward to fit with standard hand tools, minimising downtime
• Sold individually — typically replaced as a pair for balanced motor wear
• Compatible with Makita HR1800 and HR1820 hammer drills