40-974 Graded Sensor Air Temperature Fit for Thermo King RC-II RC-III SB-III

40-974 Graded Sensor Air Temperature for Thermo King

The 40-974 Graded Sensor Air Temperature is a replacement air temperature sensor designed for Thermo King refrigeration units, monitoring air temperature to support precise climate control. This graded sensor ensures accurate readings for consistent performance in transport refrigeration applications. The 40-974 Graded Sensor Air Temperature provides a reliable drop-in fit for select Thermo King systems.

Overview

This 40-974 Graded Sensor Air Temperature sensor measures the air temperature within the refrigeration unit and sends that data to the controller. It is built for Thermo King models including RC-II, RC-III, and SB-III, ensuring the system responds correctly to maintain setpoint. The sensor's graded design helps maintain accuracy across a range of operating conditions.

Built For Performance

• Precisely graded for accurate temperature sensing
• Constructed with durable materials for long service life
• Direct replacement for the 40-974 part number
• Engineered for reliable operation in demanding transport environments
• Plug-and-play design for straightforward installation

Fits These Machines

• for Thermo King RC-II
• for Thermo King RC-III
• for Thermo King SB-III

On-The-Job Use

• Monitors air temperature in refrigerated truck and trailer units
• Supports accurate temperature regulation for perishable cargo
• Replaces a worn or failed sensor to restore system performance

Specs At A Glance

Good To Know

Q: How do I know this sensor fits my Thermo King unit? A: Confirm your unit model and serial number against the listed compatibility for RC-II, RC-III, or SB-III, as fit can vary by production run.

Q: What happens if the sensor is not working properly? A: A faulty air temperature sensor can cause inaccurate temperature readings and poor cooling performance, so replacing it with this 40-974 graded sensor helps restore proper operation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.