Liftmaster 45DCT Logic Board

Restore your garage door opener to peak performance with the LiftMaster 45DCT Receiver Logic Board, an advanced replacement solution for malfunctioning or outdated systems. Circuit board failure is a common issue caused by lightning strikes or power surges, and this reliable replacement board offers an economical alternative to replacing your entire opener.

Designed for seamless integration, the 45DCT Logic Board is compatible with numerous LiftMaster, Chamberlain, and Sears Craftsman models, including HD920EV, WD962KEV, WD922K, 139.55918, and many more. It's also known by alternate part numbers like 041D7356, 41DCBC3A, 45DCCR1A, and 45DCJL5A.

Equipped with myQ and Assurelink technology, this board supports modern smart features and security enhancements. Installation is straightforward, and programming can be easily handled via the yellow “Learn” button.

Key Features:

• Compatibility: Works with a wide range of garage door openers from LiftMaster, Chamberlain, and Craftsman

• Smart Technology: Fully supports myQ and Assurelink systems

• Security Enhancements:

  • Security+ 2.0 rolling code

  • PosiLock automatic door lock

  • Timer-to-Close with visual and audible alerts

  • Motion-activated lights

  • Safety reversing with Protector System

• Installation & Programming: Quick setup with yellow Learn button

• Additional Compatibility:

  • LiftMaster 8360 Premium Chain Drive

  • LiftMaster 8550 Elite Belt Drive

  • Craftsman 139.3043

  • Replaces older models including 04D11741

Recommended Accessory:
To protect your new 45DCT Receiver Logic Board from future surges, consider pairing it with the 990LM Garage Door Opener Surge Protector.

This high-quality replacement ensures your garage system remains secure, functional, and up-to-date—without the cost of a full system replacement.