The Alltrux ATX938-1042 Thermistor Temperature Switch replaces OEM 20478470 and is designed as a service replacement for heavy-duty truck HVAC and temperature monitoring systems. This thermistor-based switch measures temperature changes and provides accurate input to the vehicle’s electronic control system, supporting proper climate control operation and system protection in fleet and vocational environments.

Thermistor temperature switches play a critical role in monitoring temperature conditions within HVAC or related systems by providing precise resistance-based feedback as temperatures change. As original thermistor switches wear, drift out of calibration, or fail electrically, inaccurate readings and reduced system efficiency can occur. Replacing worn thermistor switches helps restore accurate temperature sensing, improve system reliability, and reduce unplanned service events.

KEY FEATURES
• Designed for heavy-duty truck HVAC and temperature monitoring applications
• Thermistor-based switch provides accurate temperature feedback to control systems
• Supports reliable climate control operation and system protection
• Durable construction suited for fleet, vocational, and on-highway use
• Brand: Volvo
• Verify compatibility and application requirements before ordering

TECHNICAL SPECIFICATIONS
Alltrux Part Number: ATX938-1042
OEM Reference: 20478470
Product Type: Thermistor Temperature Switch
Brand: Volvo
System Application: Heavy-Duty Truck HVAC & Temperature Monitoring System

CROSS REFERENCES
20478470

Note: Confirm OEM reference and application details before ordering to ensure proper fit and temperature monitoring system compatibility.