The Doorking 1603-250 is a genuine OEM chain — Chain #50 Lower Assembly.
Designed for the DoorKing 1603 barrier gate operator, this factory-original component ensures correct fit and reliable performance. Installing genuine DoorKing parts protects your operator warranty and avoids the compatibility problems common with aftermarket substitutes.
In stock and ready to ship from GateHouse Supplies. Contact us for compatibility questions or bulk quantity pricing.