This part is specifically calibrated for Amana

While this is a common HVAC replacement part

Key Benefits Precise Signal Conversion: Accurately transforms a 4 to 20mA current signal into a 2 to 10Vdc voltage signal

It also supports M6400

This specific part is an automatic reset limit switch

Johnson Controls T-4000-3141 Plastic Cover This part is specifically calibratedThe Johnson Controls T 4000 3141 is a commercial grade pneumatic thermostat cover designed for horizontal mounting configurations within HVAC control systems. Engineered for T 4000 series thermostats, this white plastic enclosure features a single setpoint window to allow for clear visibility of calibration without compromising the protection of the internal bimetal sensing elements. The unit is designed with a clean, low profile aesthetic featuring