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LiftMaster/Chamberlain Replacement Part - 41A3489 T-Rail Complete Trolley Assembly For Garage Door Openers

SKU 712-LMP-41A3489
Save 39% Save 39%
Original price $173.98
Original price $173.98 - Original price $173.98
Original price $173.98
Current price $105.99
$105.99 - $105.99
Current price $105.99

GarageDoorProject® exclusively partners with US vendors, ensuring 100% OEM parts with all-new production dates. LiftMaster 41A3489 T-Rail Complete Trolley Assembly.

DURABLE CONSTRUCTION: Made of metal for long-lasting durability and strength.

WIDE COMPATIBILITY: Works with LiftMaster and Chamberlain chain drive garage door openers from 1984 to current models.

EFFICIENT PERFORMANCE: Designed for seamless travel along the T-rail, connecting the door arm to the chain drive mechanism.

SIMPLE INSTALLATION: Screw-in design for quick and hassle-free replacement of worn or broken trolley assemblies.

Product Description

LiftMaster Trolley Assembly 41A3489 Industry Tested Metal Garage Door Trolley for Chain Drive Opener | GarageDoorProject | 100% OEM | US Vendor

The LiftMaster trolley assembly 41A3489 is a durable metal trolley assembly designed for garage door opener repair, specifically for chain drive models. This LiftMaster replacement part ensures smooth garage door travel by securely connecting the door arm connector to the chain drive system, resulting in quiet trolley operation and reliable performance. Crafted from high-quality metal, this garage door trolley provides long-lasting strength and stability to support your garage door hardware needs.


This trolley assembly 41A3489 fits a wide range of LiftMaster and Chamberlain garage parts, making it an ideal choice for anyone needing a trusted chain drive opener part. Its screw-in installation method allows for quick and easy replacement without complicated tools or procedures. Tested and approved by industry standards, this metal trolley assembly guarantees consistent, smooth garage door movement and reduced noise during operation.


Key features of the LiftMaster trolley assembly 41A3489 include:

- Durable metal construction → ensures longevity and toughness under heavy use
- Wide model compatibility → fits many LiftMaster and Chamberlain garage door openers including discontinued models
- Easy screw-in installation → fast replacement process saves time and effort
- Smooth, quiet trolley operation → reduces friction and noise for better user experience
- Strong door arm connector → maintains stable connection with chain drive system for reliable functionality

Technical specifications:

- Product Name: Complete Trolley Assembly
- Model Number: 41A3489
- Material: Metal with silver finish
- Installation Type: Screw-In
- Alternative Part Numbers: 1B1435, 41B3215, 41B2617, 65411, 1A955, 4A1020, 062245, 1B3869, 4A1051, 41B2771

Compatibility covers numerous models including but not limited to:

8160WB DC Chain Drive Wi-Fi Battery Backup Garage Door Opener (Discontinued), 8360WLB DC Battery Backup Chain Drive Wi-Fi, ATSW Light-Duty Commercial/Residential Door Operator, 8580WLB Elite Series DC Battery Backup Chain Drive Wi-Fi Garage Door Opener, and many others listed in the product details.


By choosing this LiftMaster replacement part from GarageDoorProject®, you receive a genuine OEM product backed by trusted quality assurance. This trolley assembly is designed to restore your garage door opener’s smooth operation quickly and effectively. Whether repairing or maintaining your chain drive opener system, this metal trolley assembly delivers dependable performance for home or commercial use.


Upgrade your garage door hardware today with this reliable garage door trolley that combines strength, precision engineering, and ease of installation. Enjoy quiet trolley operation and smooth garage door travel every time you open or close your door.

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