Buy LiftMaster 3950 Light Duty Jackshaft Operator (Now LJ8950W) online at wholesale prices. LJ8950W Liftmaster Rolling Sheet Garage Door Opener. LiftMaster LJ8950W PLUS 1-893MAX remote Liftmaster 8950 Rolling Sheet Garage Door Opener 3950 8950W Average Rating: ( 0.0 ) stars out of 5 stars Write a review Preferred Doors LLC, a Houston TX family owned business offers low prices nationwide. For Rolling sheet steel doors Ideal for Applications Using Smaller, Lighter Commercial Doors with Light … This unit Replaces the 3950 by Liftmaster. The LJ8950W is for applications using smaller, lighter rolling commercial doors requiring 25 cycles or fewer per day. The LJ8950W replaces the LiftMaster 3950. Buy LJ8950W Liftmaster 8950 Rolling Sheet Garage Door Opener 3950 8950W at Walmart.com Free 2-day shipping. Liftmaster LJ8950W Light duty commercial door operator for rolling doors Replaces Liftmaster 3950 models × This operator is ideal for: - Dock doors - …