Doorking 1601-300 Counterweight for Octagon Arm lm-madcbb3 Supports Q018 and K20-1050B-1RL motors

Supports Q018 and K20-1050B-1RL motors commonly found in commercial gate systems

Designed to work seamlessly with the operator’s sensors

this V-wheel is the go-to choice for residential

PC and field programmable

Manufactured to meet LiftMaster's high-quality standards

Doorking 1601-300 Counterweight for Octagon Arm lm-madcbb3 Supports Q018 and K20-1050B-1RL motorsOctagonal Barrier Arm Counterweight for DoorKing 1601 Systems The DoorKing 1601 300 is a genuine replacement counterweight designed for DoorKing octagonal barrier arm assemblies. This counterweight helps balance the arm for smoother movement and more consistent barrier operation on compatible DoorKing operators, including select 1601 applications. Confirm fitment using your operator manual or parts diagram before ordering. Key Features Genuine