BEARING - MAST ROLLER (Komatsu KO1901-55069)

KO1901-55069: A worn mast roller bearing can cause rough carriage movement and uneven load handling. This aftermarket replacement part references the Komatsu catalog and carries the cross-reference number KO1901-55069. The bearing type supports rotational motion between the mast roller and its mounting shaft. A common failure consequence is increased friction that leads to premature roller wear or binding. During operation, a seized bearing may produce squeaking or grinding noises. The part is a generic bearing assembly intended for replacement use. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO1901-55069, ko1901-55069, KO190155069, ko190155069