Viking T21GB80 Worm Gearbox for T21 vehicle-access Compatible with LiftMaster LA400 and

Compatible with LiftMaster LA400 and LA412 gate operators

Supported Devices: 26-bit Wiegand card readers

The operator is Fire Department compliant

durable design

Rod Stroke: 13

Viking T21GB80 Worm Gearbox for T21 vehicle-access Compatible with LiftMaster LA400 andWorm Gear Gearbox for Swing Gate Operator Drive Systems The Viking T21GB80 Gearbox is a worm gear drive assembly used in Viking T21 first generation swing gate operators. This gearbox transfers motor output into controlled operator movement, helping maintain predictable gate travel and consistent holding force at secured perimeter entry points. Replacing a worn gearbox helps restore smooth, dependable operation and reduces stress on the operator