One-stop auto parts supplier

42-4498 Temperature Sensor for Thermo King
The 42-4498 Temperature Sensor is an aftermarket replacement sensor for selected Thermo King transport refrigeration units. It monitors temperature and provides temperature data to the refrigeration control system.
Product Description
The 42-4498 Temperature Sensor is designed for selected Thermo King transport refrigeration applications. Parts catalogs commonly list 42-4498, 41-5436 and 3E67253G01 as related or replacement part numbers.
The sensor measures temperature at its designated sensing point and sends temperature information to the refrigeration control system. Some application references describe this sensor as an intake-air temperature sensor, while other catalogs simply identify it as a Thermo King temperature sensor. Therefore, the original part number and unit application should always be checked before replacement.
The 42-4498 is listed for selected Thermo King SB, SLX, SL and SLXe applications. It can serve as an aftermarket replacement when the original part number matches.
Product Specifications
| Item | Details |
|---|---|
| Product Type | Temperature Sensor |
| Main Part Number | 42-4498 |
| Alternative Number | 424498 |
| Cross Reference | 41-5436 / 415436 |
| Other Reference | 3E67253G01 |
| Sensor Function | Temperature Monitoring |
| Application | Thermo King Transport Refrigeration |
| Main Applications | SB, SLX, SL, SLXe |
| Replacement Type | Aftermarket Replacement |
Main Function
- Measures temperature at the designated sensing point.
- Sends temperature data to the control system.
- Supports refrigeration temperature monitoring.
- Helps the controller maintain the required operating conditions.
- Provides temperature feedback for system diagnostics.
Common Replacement Symptoms
A faulty temperature sensor may cause:
- Incorrect temperature readings
- Unstable temperature signals
- Temperature-related alarms
- Abnormal temperature display
- Poor temperature control
- Intermittent sensor signals
- Difficulty maintaining the required temperature
These symptoms can also result from wiring, connectors or other system components. Check the complete circuit before replacing the sensor.
Application
The 42-4498 is associated with selected Thermo King transport refrigeration applications, including:
| Thermo King Series | Application |
|---|---|
| SB Series | Selected SB refrigeration units |
| SL Series | Selected SL refrigeration units |
| SLX Series | Selected SLX refrigeration units |
| SLXe Series | Selected SLXe refrigeration units |
Some catalogs specifically identify the sensor for SB / SLX / SL / SLXe applications. Exact fitment depends on the unit configuration and original part number.
Cross-Reference Part Numbers
Common reference numbers include:
- 42-4498
- 424498
- 41-5436
- 415436
- 3E67253G01
- 40-1221
- 401221
- 710655AT
Several parts sources list 40-1221 / 401221, 42-4498 / 424498 and 710655AT as related OEM references.
Similar Products
400974 / 41-8547 Temperature Sensor
A graded temperature sensor used on selected Thermo King refrigeration applications.
400975 / 41-8548 Temperature Sensor
A different temperature sensor commonly associated with coil or return-air sensing applications.
41-7068 Temperature Sensor
An engine coolant temperature sensor. It serves a different sensing function and should not be substituted for 42-4498 based only on appearance.
Suitable Customers
- Thermo King parts distributors
- Transport refrigeration parts wholesalers
- Refrigeration repair companies
- Truck refrigeration service centers
- Trailer refrigeration service providers
- Thermo King aftermarket parts suppliers
- Fleet maintenance companies
Ordering Information
Please provide the original part number, Thermo King unit model, serial number and connector details before ordering.
For cross-reference applications, compare the original 42-4498 / 41-5436 number with the replacement part to confirm compatibility.





