LiftMaster 041B3869-3A Belt Drive Trolley Kit Discontinued Whether you’re replacing a worn-out

Whether you’re replacing a worn-out liner or upgrading your garage door system

Works on insulated

Remote control

ISO Viscosity Grade of Base Oil: 15

LiftMaster 041B3869-3A Belt Drive Trolley Kit Discontinued Whether you’re replacing a worn-outThe LiftMaster 041B3869 3A Belt Drive Trolley Kit is a genuine replacement trolley assembly designed for use with select LiftMaster and Chamberlain belt drive garage door openers. The trolley connects the opener carriage to the garage door arm, allowing the motor to open and close the door smoothly along the rail. This replacement kit is used when the original trolley becomes worn, damaged, or fails to properly engage the belt drive system. Installing