SPRING - BRUSH - MOTOR (Komatsu KO8730939)

A worn brush motor spring can cause intermittent electrical contact, leading to erratic motor performance or failure. This aftermarket replacement part references the Komatsu catalog and cross-references part number KO8730939. The spring applies consistent pressure to maintain brush-to-commutator contact within a motor assembly. If the spring loses tension, the brush may bounce or fail to seat, resulting in sparking or reduced motor output. In a typical usage context, a failed spring often produces visible arcing or a sudden loss of power. The item ships at approximately 0.005 pounds. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO8730939, ko8730939