LiftMaster 8550 DC Battery Backup Belt Drive

LiftMaster 8550W Elite Series DC Battery Backup Belt Drive

  • Automatic Garage Door Lock Capable; deadbolt locks the garage door, making it virtually impenetrable (2 max).
  • Security+ 2.0® safeguards garage access – with every click a new code is sent to the garage door opener ensuring the door does not inadvertently open.
  • Timer-to-Close automatically closes the door after a pre-programmed number of minutes.
  • Alert-2-Close Warning System provides audible and visual warnings when a garage door is about to close when using MyQ Technology or Timer-to-Close.
  • Motion Detector is integrated into control panel providing rapid detection and illumination of garage.
  • The Protector System® incorporates safety sensors which emit an invisible light beam across the garage door opening, automatically reversing the door if an object interrupts the beam.




  • P3 Motors provide proven reliability and durability.
  • Liftmaster 8550 DC Motor Belt System delivers powerful, ultra-quiet performance.
  • Battery Backup ensures access to your garage when the power goes out.
  • Dependable warranty includes lifetime coverage of motor and belt, five (5) years on parts and one (1) year on battery. 1 year warranty on labor/installation.