The LiftMaster 41A7442 (also referred to by the part number 041A7442) is a high-authority OEM replacement kit that includes both the motor and the travel module. This assembly is specifically designed for 1/2 HP AC belt drive garage door openers.
It serves as a critical replacement component when your opener's motor fails or when the travel module—which tracks the door's position—stops communicating correctly with the logic board.
Product Overview
The LiftMaster 41A7442 Motor and Travel Module provides a factory-authorized solution to restore smooth, quiet operation. This kit is a cost-effective alternative to replacing the entire operator and is built to withstand heavy residential use.
• Integrated Design: Includes the AC motor, mounting bracket, and travel module, ensuring all mechanical drive components are aligned for precision.
• Quiet Operation: Engineered for belt drive systems to maintain low noise levels, making it ideal for garages with living spaces above or nearby.
• Safety & Precision: The travel module provides accurate data to the logic board for travel limits and safety reversal protocols, ensuring the door operates within established boundaries.
• Durable Build: Features industrial-grade windings and a rugged bracket assembly for long-term reliability.
Compatibility Guide
Following strict OEM logic, this part is brand-specific and designed for AC-powered belt drive units.
• Supported Models: Primarily used for LiftMaster 8355, 8355W, and 8355W-267 models.
• Chamberlain Equivalent: Also compatible with several Chamberlain B-series and HD-series models like the B550, B510, and HD520.
• Identifying Feature: This motor is for units with a Yellow Learn Button that specifically use an AC motor.
Note: This kit is not compatible with DC motor units (those with battery backup) or chain drive operators.
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