LiftMaster 041A3489 Garage Door Opener Carriage Trolley Assembly

The LiftMaster 041A3489 Carriage Trolley Assembly is a genuine OEM replacement part designed to restore smooth, reliable operation to compatible chain drive garage door openers. As a critical component of the opener's drive system, the trolley connects the moving chain to the garage door arm, enabling controlled opening and closing cycles.

Built for durability and long-term performance, this complete carriage trolley assembly is compatible with a variety of LiftMaster, Chamberlain, Sears Craftsman, and Wayne-Dalton chain drive operators. It is an ideal replacement for worn, damaged, or malfunctioning trolley assemblies that may affect door movement and overall opener performance.

Key Features

• Part Number: 041A3489
• Component Type: Complete carriage trolley assembly
• OEM Replacement: Genuine LiftMaster replacement part
• Drive Type: Designed for chain drive garage door openers
• Durable Construction: Engineered for dependable, long-term performance
• Smooth Operation: Helps restore proper door movement and opener functionality
• Easy Installation: Direct replacement for compatible trolley assemblies

Compatible LiftMaster Models

• 1240R
• 1245R
• 1246R
• 1255R
• 1256R

Additional Compatibility

Compatible with select chain drive garage door openers manufactured by:

• LiftMaster
• Chamberlain
• Sears Craftsman
• Wayne-Dalton

Always verify compatibility using your garage door opener model number and parts diagram before ordering.

Alternate Part Numbers

This assembly may also be referenced by the following part numbers:

1B1435, 41B3215, 41B2617, 65411, 1A955, 41A3489, 4A1020, 062245, 1B3869, 4A1051, and 41B2771.

Common Applications

• Residential chain drive garage door openers
• Replacement of worn or damaged trolley assemblies
• Garage door opener repair and maintenance projects
• Restoring proper chain drive operation

Benefits

• Restores smooth and consistent garage door movement
• Maintains proper connection between the drive chain and door arm
• Reduces wear on opener components
• Helps extend the life of the garage door opener system
• OEM quality ensures proper fit and dependable performance