BEARING - MAST ROLLER (Komatsu KO34B-72-13620)

KO34B-72-13620: A worn mast roller bearing can cause uneven roller wear and increased friction in the mast assembly. This aftermarket replacement part references the Komatsu catalog number KO34B-72-13620. The bearing supports the mast roller, allowing smooth vertical movement of the mast sections. If the bearing fails, the roller may seize, leading to binding or jerky mast travel. During operation, a seized roller can damage the mast channel surfaces. This item ships at approximately 3.6 pounds. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO34B-72-13620, ko34b-72-13620, KO34B7213620, ko34b7213620