Compatible with 24 volt ignition switch with a set of H800. Plugs into existing wire harness. No splicing required. Replaces part numbers 4448303, 4250350, 4477373, 4469337, and AT154992. Fits the following Excavator models: EX-1, EX-2, EX-3, EX-5, EX-6 ZX-1, ZX-3 Series Excavators Also compatible with Excavators, Loggers, and Wheeled Excavators. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.