John DeereEvaporator Thermistor SensorPart No: AT543479

The John Deere Evaporator Thermistor Sensor AT543479 is engineered for precise temperature detection and control within your machine’s HVAC system. This sensor plays a crucial role in monitoring evaporator coil temperature, helping regulate cabin comfort and prevent evaporator freeze-up. Built for consistent performance in rugged environments, the thermistor features a compact, durable design that resists vibration, heat, and moisture—common stressors in heavy-duty field operations. Whether your system is experiencing erratic cooling or you’re conducting preventative maintenance, this component provides the accuracy and reliability needed for optimal climate control. Easy to install and compatible with select John Deere equipment, the AT543479 contributes to operator comfort and system longevity. Choose Doggett John Deere for high-quality parts that keep your machines running efficiently and operators working in comfort—regardless of the conditions outside.