LiftMaster® Model 8355

liftmaster 8355The LiftMaster® Model 8355 is a belt-driven electric garage door opener with a Security+®double light and a super-quiet 1/2hp heavy-duty motor vibration isolation system. The Protector System® with an infrared reversing device comes standard, along with rolling code technology and solid steel T-rails.


MyQ® technology enables you to securely monitor and control your garage door opener and houselights with your smartphone, tablet or computer.

Alerts can be received as email or pop-up (push) notifications on your mobile device so that you always know the status of your garage door and houselights.

MyQ mobile app is a free download requiring no annual activation fee.


P3™ Motors from LiftMaster® are reliable, durable and powerful – designed specifically for your needs.

1/2 HP motor with belt drive system provides quiet, reliable and maintenance free performance.

Motor Vibration Isolation System (MVIS®) provides super quiet, smooth operation year after year.

Energy-efficient operation consumes up to 75% less power in standby mode.

Lifetime motor and belt warranty. 1-year parts warranty.


Security+ 2.0™ safeguards your household – with every click a new code is sent to the garage door opener so that the door opens only for you.

PosiLock® locks down your door by electronically monitoring against a forced opening.

Alert-2-Close warning system provides audible and visual warnings when the garage door is about to close when using MyQ technology or Timer-to-Close.

The Protector System® has safety sensors that project a light beam across the garage door opening, automatically reversing the door if anything interrupts the beam

To reduce the risk of injury to persons – When the LiftMaster Internet Gateway is used with garage door openers, the operator must be installed with sectional doors.