Porter Cable 445861-25 Carbon Brush Replacement Part

Product Description

The PORTER CABLE 445861-25 is a replacement carbon brush designed for use in compatible PORTER CABLE power tools. Carbon brushes are wear components that maintain electrical contact between the stationary wiring and the rotating armature inside a universal or series-wound motor. When brushes wear down past their service limit, motor performance drops and the tool may stop running entirely. Replacing them at the correct interval restores full motor function and extends tool service life. This part is typically installed by electricians, tool repair technicians, or experienced tradespeople performing motor maintenance.

Carbon brushes are a standard scheduled-maintenance item on corded power tools with universal motors, including angle grinders, circular saws, rotary tools, and similar equipment. The 445861-25 is intended as a direct OEM-specification replacement, ensuring correct fit and brush grade for the motor it serves. Proper brush replacement keeps commutator wear even and prevents arcing damage to the armature.

Key Features

• OEM replacement carbon brush for PORTER CABLE power tools
• Maintains proper electrical contact between brush holder and rotating armature
• Correct brush grade matched to original motor specification
• Restores full motor performance when worn brushes cause power loss or intermittent operation
• Direct fit replacement reduces installation time

Compatibility

Designed as an OEM-style replacement carbon brush for compatible PORTER CABLE power tools. Verify fitment against the tool model number and parts diagram before installation.

Installation Notes

Carbon brush replacement is performed by qualified tool repair technicians or licensed electricians. Always disconnect the tool from its power source and allow it to cool completely before accessing the brush holders. Brushes are typically accessed through dedicated brush caps on the motor housing; use the correct screwdriver or brush cap tool to avoid damaging the cap or holder. Inspect the commutator surface for grooving or excessive wear while brushes are removed, and replace brushes in pairs to maintain even commutator contact.

Technical Specifications

• Part Type: Carbon Brush

Standard Information

• Brand: PORTER CABLE
• Manufacturer Part Number: 445861-25