LiftMaster Cable Extension Monitor - Left Side | LIF-K41-0156-000 liftmaster sw420 hall effect assembly the forcing lever kit provides

the forcing lever kit provides long-term durability and consistent mechanical performance

5 inches when closed

Exterior Dimensions (in): 4

Built-in handles for ease of handling and installation

LiftMaster Cable Extension Monitor - Left Side | LIF-K41-0156-000 liftmaster sw420 hall effect assembly the forcing lever kit providesLiftMaster Cable Extension Monitor Left Side LIF K41 0156 000 K41 0156 000 is a Left Side Cable Tension Monitor Service Kit. For use with various LiftMaster MAXUM Series DC 700 lbs. to 2200 lbs. Standard duty and Extended Duty Jackshaft, Jackshaft Hoist, and Trolley Commercial Door Operators. Refer to the installation manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Note: Refer to K41 0157 000