LiftMaster 041C5141-1 Square Rail Trolley Kit

Replacement Trolley Kit for Chain-Drive Square Rail Openers

The LiftMaster 041C5141-1 Square Rail Trolley Kit is a genuine LiftMaster replacement part for compatible LiftMaster and Chamberlain chain-drive garage door opener rail assemblies. The trolley rides along the opener’s square rail and connects the door arm to the chain-drive mechanism, allowing the opener to move the garage door through its open and close cycle.

This kit is commonly replaced when the original trolley is cracked, worn, binding on the rail, disconnected from the door arm, or no longer engaging the chain-drive assembly correctly. A worn or damaged trolley can affect garage door movement, opener performance, and access security for residential garage entry points.

The 041C5141-1 is also referenced as 062313, 41C5141, and 41C5141-1. It is intended for square rail chain-drive applications only and should not be confused with T-rail trolley kits, belt-drive trolley kits, or screw-drive trolley assemblies.

Key Features

• Genuine LiftMaster square rail trolley replacement kit
• LiftMaster part number 041C5141-1
• Also known as 062313, 41C5141, and 41C5141-1
• Designed for compatible LiftMaster and Chamberlain chain-drive garage door opener rail assemblies
• Used on square rail opener systems
• Connects the garage door arm to the chain-drive mechanism
• Helps restore proper trolley travel along the opener rail
• Useful replacement for worn, damaged, cracked, or missing trolley assemblies
• Includes trolley assembly with clevis pin and ring as shown
• Not for T-rail, belt-drive, or screw-drive opener systems

Technical Specifications

• Manufacturer: LiftMaster
• Model / Part Number: 041C5141-1
• Alternate Part Numbers: 062313, 41C5141, 41C5141-1
• Product Type: Square rail trolley kit
• Application: Garage door opener trolley replacement
• Drive Type: Chain drive
• Rail Type: Square rail
• Compatible Brands: LiftMaster and Chamberlain, when confirmed by model and parts diagram
• Known Compatibility Reference: LiftMaster 8010 chain/cable drive garage door opener series shown as a compatible model reference
• Function: Travels on the square rail and connects the door arm to the chain-drive mechanism
• Included Components: Square rail trolley assembly, clevis pin, and ring
• Not Included: Garage door opener, rail assembly, chain, door arm, motor head, safety sensors, or mounting hardware not shown
• Compatibility Note: Match by opener model, rail type, and replacement parts diagram before ordering
• Important Fitment Note: Square rail trolley kits are not interchangeable with T-rail, belt-drive, or screw-drive trolley assemblies
• Condition: New replacement part

Conclusion

The LiftMaster 041C5141-1 Square Rail Trolley Kit replaces the trolley assembly on compatible LiftMaster and Chamberlain chain-drive square rail garage door openers. It is the correct style for square rail chain-drive systems and should be matched to the opener’s model number and parts diagram before installation.