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Ten rectangular carbon brushes with wire leads and springs, grey with gold and silver contacts

Unique-Bargains

Unique-Bargains 12mm x 6mm x 4mm Motor Carbon Brushes 10 Pcs

SKU CH-EXDS-9CKGH

Set of ten replacement carbon brushes measuring 12 mm by 6 mm by 4 mm for generic electric motors

  • 10-pack keeps spares on hand for quick motor repairs
  • 12 mm × 6 mm × 4 mm carbon blocks fit many generic electric motors
  • Pre-fitted wire leads and springs speed up brush replacement
  • Gray, gold and silver tones show wear clearly during inspection
  • 8 g net weight adds negligible mass to tool assemblies

What the brushes are for

These carbon motor brushes measure 12mm by 6mm by 4mm and come in a pack of 10. They suit generic electric motors found in many power tools where worn brushes cause poor running. DIYers and repair technicians can keep a set on hand for routine maintenance.

Heat noise and power in use

The brushes operate by sliding contact with the commutator, so friction generates modest heat during normal motor operation. No active cooling or lubrication is required, and the carbon material keeps electrical noise low. Power draw is determined entirely by the host motor, not by the brushes themselves.

What the pack includes

Each brush ships with its wire lead and spring already attached, so no separate hardware is needed for installation. The grey, gold-tone and silver-tone finish is purely cosmetic and does not affect conductivity. Ten pieces provide enough spares for multiple replacements without reordering.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 95% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameUnique Bargains

Questions about this item

How do I install these 12mm x 6mm x 4mm carbon brushes and what is the common mistake?

Remove the old brushes from the motor housing, insert the new brushes with the wire leads and springs oriented exactly as the originals, and secure the caps; the frequent error is reversing the brush orientation, which causes poor contact and sparking.

What maintenance or replacement will these brushes need over time?

These brushes wear gradually during motor operation; inspect them periodically and replace the set when the carbon block approaches the minimum length or when the motor shows reduced power or excessive sparking.

What limit appears first when these brushes are used continuously under load?

Heat buildup from sustained current flow accelerates carbon wear and can degrade the spring tension, leading to loss of contact and motor performance drop before the brushes are fully consumed.

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