65705K21 ST-132 Carbon Brush is a shunt-type carbon brush (Type C) designed for ACE motor assemblies and other brushed DC motors. The brush measures 0.305 inches thick and 13/16 inches wide with an overall length of 1 3/8 inches, and it is supplied in a 2-pack under part number 65705K21. As a shunt carbon brush, it is intended to maintain stable electrical contact with a motor’s commutator under load, enabling consistent current transfer in standard drive applications. This ST-132 variant is the exact dimension set associated with the 65705K21 listing, making it a precise replacement for ACE/ST-132 style motor configurations that require these measurements.
