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Square Rail Trolley Kit
The 041C5141-2 is a Square Rail Trolley Replacement Kit. Compatible with various Chamberlain® Belt Drive Garage Door Openers and rail assemblies. The trolley is used for travel on the garage door opener square rail and connects the door arm to the belt drive mechanism. Complete kit includes: Square rail trolley, belt tensioner, clevis pin and ring. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.