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2 x Adjustable Top Fixture Brackets - Wide Body Brackets
12B374‑2
The square rail trolley is used for travel on the garage door opener rail and connects the door arm to the chain drive mechanism
The worm gear is 1 1/8" OD
36' inch length
Opener Door Arm Kit SHOP BY SPRING SIZE_.218-2-27 2 x Adjustable Top Fixture041A8094 is a Door Arm Replacement Kit. For use with various LiftMaster and Chamberlain Chain Drive Garage Door Openers. Complete kit includes: Straight arm, Curved arm, and Hardware.
US$ 1870.00
US$ 857.50
US$ 2245.00
