Johnson Controls T-4000-2139 Cover This OEM York replacement part

This OEM York replacement part ensures exact electrical specifications and mounting alignment

Durable Construction: Built to withstand high-cycling environments in professional heating system maintenance applications

Ensure the heat exchanger is clean and the fan is operating at the correct CFM before replacing the switch

Does this part fit older Miller or Intertherm furnaces

and MP-5200-0-0-2 series actuators when they are being installed on legacy Barber Colman linkages

Johnson Controls T-4000-2139 Cover This OEM York replacement partThe Johnson Controls T 4000 2139 is a professional grade horizontal thermostat cover designed specifically for the T 4000 Series pneumatic room thermostats. Engineered for sleek, unobtrusive installation, this beige plastic cover features a clean aluminum faceplate without a thermometer window or setpoint adjustment openings. This configuration is ideal for facilities where unauthorized tampering must be minimized while maintaining a uniform aesthetic