Description

Overview

Coolant Level Sensor Thermo King suits SB, SL and Spectrum trailer refrigeration units that monitor engine coolant level during operation. It gives the control system a direct coolant level input, so the unit can flag low-level conditions before they grow into a shutdown or overheating problem.

Replace this part when the original sensor fails, the connector or body is damaged, or the unit reports a coolant level fault that points back to the sensor circuit. Because the sensor works in a critical engine protection role, matching the correct application matters before you order.

Features

• Coolant level sensor for Thermo King trailer refrigeration units
• Suits SB, SL and Spectrum application groups
• Supports engine coolant level monitoring through the control system
• Useful when repairing a low-coolant alarm, damaged sensor body or sensor wiring fault

Specifications and Materials

Coolant Level Sensor Thermo King is a replacement sensor for engine coolant level monitoring on the listed unit families. Check the unit series, connector style and mounting point before ordering so the replacement matches the sensor already fitted to the tank or cooling system.

Part number: TK-41-2842-AM.

See the official Thermo King alarm code guide

Compatibility and Fitment

Check the unit family first, then confirm you need the coolant level sensor rather than the coolant temperature sensor or another engine protection input. This part suits Thermo King SB, SL and Spectrum units where the controller monitors engine coolant level through a dedicated level sensor.

Compliance and Safety

Inspect the connector, harness routing and sealing point during replacement, because coolant contamination or a loose plug can trigger repeat faults after installation. Also check the cooling system for the actual coolant level condition, since a warning can point to both a bad sensor and a genuine low-coolant problem.

Trailer Applications

Coolant Level Sensor Thermo King fits trailer refrigeration service work on older SB and SL fleets as well as Spectrum units that still need dependable engine protection inputs. It is commonly replaced during alarm tracing, cooling-system repairs and electrical fault finding when the unit shows a coolant level warning.

Why Choose ICS Trailers

ICS Trailers stocks Thermo King service parts for older trailer refrigeration units, so you can pick up replacement sensors alongside other reefer maintenance items from one place.

Browse Thermo King parts at ICS Trailers