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41-7068 Water Temperature Sensor for Thermo King
The 41-7068 Temperature Sensor is an aftermarket engine coolant temperature sensor for selected Thermo King transport refrigeration units. It monitors engine coolant temperature and sends temperature data to the control system.
Product Description
The 41-7068 Temperature Sensor measures engine coolant temperature in selected Thermo King refrigeration units. Thermo King parts references describe it as a Sensor – Engine Coolant Temperature or Sensor Ass’y Engine Water.
The sensor helps the refrigeration unit monitor engine operating temperature. It sends temperature information to the control system for monitoring and system operation.
The 41-7068 is commonly associated with Thermo King SL, SB and SMX units. Parts catalogs also list applications such as RC-II, RC-III, RMN-II SR and Spectrum Super-II.
This product works as an aftermarket replacement for the original sensor. Before ordering, compare the original part number, unit model and connector with the replacement sensor.
Product Specifications
| Item | Details |
|---|---|
| Product Type | Engine Coolant Temperature Sensor |
| Main Part Number | 41-7068 |
| Alternative Number | 417068 |
| Common Cross Reference | 1E27507G03 |
| Other Reference Numbers | 44-8882, 41-740 |
| Sensor Application | Engine Coolant Temperature |
| Function | Coolant Temperature Monitoring |
| Application | Thermo King Transport Refrigeration |
| Main Unit Series | SL, SB, SMX |
| Replacement Type | Aftermarket Replacement |
Main Function
- Measures engine coolant temperature.
- Sends temperature data to the control system.
- Helps monitor engine operating conditions.
- Supports refrigeration unit temperature management.
- Helps identify abnormal engine temperature conditions.
Common Replacement Symptoms
A faulty 41-7068 sensor may cause:
- Incorrect coolant temperature readings
- Unstable temperature signals
- Engine temperature alarms
- Abnormal temperature display
- Poor engine temperature monitoring
- Intermittent sensor signals
- Difficulties with normal refrigeration unit operation
These symptoms can also come from wiring, connectors or other engine components. Check the complete circuit before replacing the sensor.
Application
The 41-7068 is listed for selected Thermo King units, including:
| Series | Selected Applications |
|---|---|
| SL | SL-100, SL-200, SL-300, SL-400 |
| SL e-Series | SL-100e, SL-200e, SL-400e |
| SB | SB Classic, SB-III and selected SB-III variants |
| SMX | SMX, SMX-II |
| RC | RC-II, RC-III |
| RMN | RMN-II SR |
| Spectrum | Spectrum Super-II TCI |
Some catalogs also list Super-II 190, Super-II 30 and related configurations. Exact compatibility depends on the unit configuration and engine.
Cross-Reference Part Numbers
Common reference numbers include:
- 41-7068
- 417068
- 1E27507G03
- 44-8882
- 448882
- 41-740
- 41740
- 41-0740
- 410740
- 1B13511G01
- 1B16130G01
Parts catalogs identify 1E27507G03 as a current reference and list 44-8882 / 1B13511G01 and 41-740 / 1B16130G01 as older references.
Similar Products
41-6538 Water Temperature Sensor
A different Thermo King engine water temperature sensor used on selected SLX, SLXe, SLXi and T-Series applications.
41-6539 Water Temperature Sensor
Another engine water temperature sensor with different terminal and application references. Check the original part number before substitution.
41-7068 should not be replaced only because the sensor looks similar. Always verify the original part number and unit application.
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 when ordering.
For replacement applications, compare the original 41-7068 / 1E27507G03 number with the replacement part before installation.





