Honeywell Y594G1419 24V multistage heatpump thermostat with auto changeover

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Honeywell Y594G 1419 24V multistage heatpump thermostat with auto changeover and locking cover, includes T874G 1642 and Q674F 1444$131.7567-Y53

Specifications provided by manufacturer on manufacturer's website

This `Honeywell Y594G1419 24V multistage heatpump` can be substituted for these OEM part numbers:

manufacturerpart number(s)
Honeywell
Y594G 1419
Y594G1419