Description

Overview

Graded Discharge Sensor Thermo King suits SB, SL, SLX and Precedent trailer refrigeration units where the controller needs a graded discharge air temperature input. It feeds discharge air temperature data back to the control system, so the unit can monitor operating conditions and respond correctly to discharge sensor faults.

Replace this part when the original sensor fails, the lead gets damaged or discharge sensor alarms point to a faulty graded sensor. Because graded sensors need the correct application match, it is worth checking the unit family and the existing sensor number before ordering.

Features

• Graded discharge temperature sensor for Thermo King trailer units
• Suits SB, SL, SLX and Precedent application groups
• Supports discharge air temperature feedback to the controller
• Useful during sensor fault repairs, harness work and electrical service

Specifications and Materials

Graded Discharge Sensor Thermo King covers the discharge air sensing role on the listed Thermo King units. Match the unit family and the existing sensor number before ordering, especially when the controller setup depends on graded sensor calibration.

Part number: TK-40-0974-AM.

See the official Thermo King installation instructions for graded sensor context and air chute detect setup

Compatibility and Fitment

Check the unit family first, then confirm you need the graded discharge sensor rather than a return air sensor or ungraded alternative. This part suits Thermo King SB, SL, SLX and Precedent applications that use a graded discharge air temperature sensor.

This cross-reference listing means this part is a suitable replacement for the part numbers and applications shown. Some changes in installation may be required. 40-0974, 400974, 400-974, 40-974, 40974, 40-0871, 400871, 400-871, 40-871, 40871, 41-4022, 414022, 414-022, 41-2649, 412649, 412-649, 41-8547, 418547, 418-547

Compliance and Safety

Route the lead away from hot components and sharp edges, then secure it so vibration does not chafe the insulation. Also check sensor position and controller setup during replacement, because the wrong sensor location or grade can trigger ongoing control faults.

Trailer Applications

Graded Discharge Sensor Thermo King fits trailer refrigeration service across older SB and SL families, later SLX units and Precedent platforms. It is commonly replaced during discharge sensor fault tracing, electrical repairs and sensor renewal after alarm-driven maintenance.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

Why Choose ICS Trailers

ICS Trailers stocks Thermo King electrical service parts for trailer refrigeration work, including sensors used across SB, SL, SLX and Precedent fleets.

Browse Electrical parts at ICS Trailers for more trailer refrigeration electrical replacements