LiftMaster 041B3243 Inner Trolley Kit liftmaster 15-19478 Visitor prox cards: 50

Visitor prox cards: 50

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LiftMaster 041B3243 Inner Trolley Kit liftmaster 15-19478 Visitor prox cards: 50LiftMaster 041B3243 Inner Trolley Kit This is an Inner Trolley Replacement Kit. For use with various Chamberlain and LiftMaster Chain Drive garage door opener rail assemblies. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part. Includes Steel inner trolley Threaded shaft Replacement hardware Also known as LiftMaster 41B3243 LiftMaster 210C20