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Belt Drive Trolley Kit


This part replaces the following legacy #'s : 041B3869, 041B3869-1, 041B3869-3

041B3869-3A is a belt drive trolley replacement kit. Compatible with various LiftMaster® belt drive garage door openers. Check the manual for your specific model number before ordering to ensure compatibility.


Genuine LiftMaster® replacement part.

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