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Garage door springs and cables are under extreme tension and require appropriate safety precautions
Kit allows opener to fully open garage doors up to 8ft
For Genie Excelerator Screw Drive garage door opener models: PRO99-IC
8500W DC Battery Backup Wall Mount Wi-Fi Garage Door Opener - Discontinued
4178B0034B LiftMaster 178B34 / Chamberlain Straight Door Arm Garage door springs and cablesDescription This is a Straight Door Arm Replacement Kit. For use with various LiftMaster and Chamberlain Garage Door Openers. The straight arm is commonly paired with the curved door arm. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Refer to the following part # for the Curved Door Arm Replacement Kit: 041B0035B Genuine LiftMaster replacement part.
US$ 91.00
US$ 3199.50
US$ 570.00
