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LiftMaster's 81C168 is a garage door screw drive carriage rack designed for LiftMaster and Chamberlain screw drive garage door assemblies. The 81C168 works exclusively with LiftMaster trolley carriage 41C4677. The Carriage Rack and trolley install together on the garage door rail to connect the door arm and the operator.
LiftMaster 81C168 garage door screw drive carriage rack
For LiftMaster and Chamberlain Screw Drive Operators
Works with carriage trolley 41C4677
Compatible replacement for Chamberlain 81C275 and K081C0168
Not Compatible with Models 3130 or 3240
Also known as: 081C0168, K081C0168