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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
one-button operation for immediate results
Input Power: 120VAC / 230VAC single phase
OEM replacement upper crank assembly for BG770 barrier systems
Its OEM-grade construction and precise dimensions ensure dependable performance in commercial and residential perimeter security installations
ease of installation
LiftMaster K72-13057 Clutch Shaft Kit for APT Operators driveway-loops one-button operation for immediate resultsReplacement Clutch Shaft Kit for APT Trolley Operators The LiftMaster K72 13057 is a genuine replacement clutch shaft kit built for LiftMaster APT commercial apartment house trolley operators. If your operator is slipping, not transferring torque consistently, or needs a drivetrain refresh, this kit replaces the clutch shaft assembly components to restore proper drive engagement. Always confirm compatibility using your operators manual or replacement
