Makita CB430 Carbon Brush Set for Drill 6337D, 6337DWAE, 6337DWDE, 4331D

The Makita CB430 carbon brush pair is a replacement motor component designed to restore proper electrical contact and reliable motor performance in compatible Makita power tools. Carbon brushes transfer electrical current from the stationary wiring to the rotating armature, enabling the motor to operate efficiently during drilling, cutting, grinding, and fastening applications. Manufactured from durable electrographite carbon with integrated springs, these brushes are designed to withstand continuous friction and heavy jobsite use. Over time carbon brushes naturally wear down due to constant contact with the commutator, which can result in reduced motor power, intermittent operation, or difficulty starting the tool. Replacing worn brushes helps restore proper electrical conductivity and maintain dependable motor performance. The Makita CB430 carbon brush set includes a pair of brushes for complete replacement and is compatible with numerous Makita tools including 4331D, 4333D jig saws, 6203D, 6213D, 6217D, 6233D, 6237D, 6313D, 6317D, 6333D, 6337D, 6339D, 6343D, 6347D, 6349D cordless drills, 8413D, 8433D, 8443D, 8444D hammer drills, BCS550 metal cutting saws, BGA450Z, BGA452, BGA452Z angle grinders, BDF460 drill drivers, BHP460 hammer drills, and BHR200 and BHR240 rotary hammer models. Carbon brushes are typically replaced in pairs to ensure balanced motor performance and proper electrical contact.