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The DoorKing 1837-010 Main Control Board is a vital replacement part for DoorKing 1837 series telephone entry systems
Gate Capacity: Supports gates up to 2200 lbs
providing smooth and consistent operation
and elevator control applications
It is used to restore the operator’s enclosure when the original door is damaged
LiftMaster K75-50147 (Elite Q089) Trolley Body Assembly Kit mounting-bracket The DoorKing 1837-010 Main ControlTrolley Body Assembly for LiftMaster HCT and Elite Hercules The LiftMaster K75 50147 Trolley Body Assembly Kit (also known as Elite Q089) is a genuine OEM replacement designed for LiftMaster HCT and Elite Hercules overhead gate operators. This complete kit restores smooth trolley movement and reliable operation, ensuring long lasting durability and precise alignment within the system. Key Features Genuine LiftMaster OEM replacement assembly Compatible
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