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44-6016 RPM Sensor for Thermo King | OEM Replacement
44-6016 RPM Sensor for Thermo King detects engine rotational speed and sends RPM information to the refrigeration unit control system. It is a replacement sensor for selected Thermo King units with D201 engines.
Product Description
The 44-6016 RPM Sensor is an aftermarket replacement sensor for selected Thermo King transport refrigeration units.
The sensor detects engine speed and provides an RPM signal to the control system. Accurate engine speed information helps the refrigeration unit monitor engine operation and maintain proper system control.
The 44-6016 is also identified as 446016 and 44-6016 in aftermarket parts catalogs. Some catalogs list 1189A70G01 as a related reference number.
This RPM sensor is associated with Thermo King equipment using the D201 engine. Common applications include selected SB-II, SB-III, MD and TS series refrigeration units. Always compare the original part number, engine model, connector, and sensor dimensions before ordering.
Product Specifications
| Item | Details |
|---|---|
| Product Type | RPM Sensor |
| Part Number | 44-6016 |
| Alternative Number | 446016 |
| Related Reference | 1189A70G01 |
| Brand | Thermo King |
| Engine | D201 / D-201 |
| Application | Transport Refrigeration Units |
| Main Applications | SB-II, SB-III, MD100, MD200, MD300, TS200, TS300 |
| Function | Engine RPM Detection |
| Replacement Type | Aftermarket Replacement |
Product Application
The 44-6016 RPM sensor is commonly listed for the following Thermo King equipment:
| Thermo King Series | Common Models / Applications |
|---|---|
| SB Series | SB-II |
| SB Series | SB-III |
| MD Series | MD100 |
| MD Series | MD200 |
| MD Series | MD300 |
| TS Series | TS200 |
| TS Series | TS300 |
The listed applications use or relate to the D201 / D-201 engine. Application details can vary by unit version and production configuration, so customers should verify the unit information before replacement.
Main Function
The RPM sensor plays an important role in engine speed monitoring.
It helps the refrigeration system:
- Detect engine rotational speed.
- Send RPM information to the control system.
- Monitor engine operating conditions.
- Support proper refrigeration unit control.
- Assist technicians with engine and refrigeration system diagnosis.
A correctly functioning RPM sensor helps the controller receive a stable engine-speed signal during operation.
Common Replacement Symptoms
A damaged or failing RPM sensor may cause:
- Incorrect or unstable RPM readings.
- Loss of engine speed signal.
- Engine speed-related alarm conditions.
- Abnormal refrigeration unit operation.
- Intermittent sensor signals.
- Difficulty starting or controlling the refrigeration unit in some applications.
These symptoms can also result from damaged wiring, poor connections, or other control-system problems. Technicians should check the complete sensor circuit before replacement.
Engine Application
The 44-6016 RPM Sensor is associated with the D201 engine used in selected Thermo King refrigeration equipment. Parts catalogs specifically identify the product as a D201 RPM sensor.
This makes the engine model an important part of the identification process. When customers request this sensor, providing the Thermo King unit model and engine information can help confirm the correct replacement.
Related Part Numbers
| Part Number | Description |
|---|---|
| 44-6016 | Thermo King RPM Sensor |
| 446016 | Alternative number format |
| 44-6016 | Main Thermo King reference |
| 1189A70G01 | Related reference number |
The number 446016 represents the same basic part number without the hyphen and commonly appears in aftermarket listings.
Similar Thermo King RPM Sensors
Thermo King uses different RPM sensors for different engines and refrigeration unit series. Therefore, customers should not select an RPM sensor based only on the product name.
| Part Number | Product | Typical Application |
|---|---|---|
| 44-6016 | RPM Sensor | D201 engine / selected SB, MD and TS units |
| 44-9298 | RPM Sensor | Selected SB, SLXi, SL and T-Series units |
| 41-8105 | RPM Sensor | Selected SLX / SLXe / SLXi units |
For example, 44-9298 and 41-8105 are also Thermo King RPM sensors, but they serve different equipment applications.
Therefore, customers should confirm the original part number and unit model before purchasing a replacement sensor.
Why Choose a 44-6016 Replacement RPM Sensor?
- Designed for selected Thermo King refrigeration applications.
- Provides engine RPM information to the control system.
- Suitable for aftermarket repair and maintenance.
- Supports Thermo King SB, MD and TS refrigeration equipment.
- Suitable for parts distributors and refrigeration repair companies.
- Provides a practical replacement option for a damaged or failed RPM sensor.
Suitable Customers
This product is suitable for:
- Thermo King parts distributors
- Refrigeration parts wholesalers
- Transport refrigeration repair shops
- Truck refrigeration service companies
- Fleet maintenance departments
- Thermo King aftermarket parts suppliers
- Refrigeration equipment maintenance companies
Ordering Information
Before ordering the 44-6016 RPM Sensor, please contact us to provide:
- Original part number.
- Thermo King unit model.
- Engine model.
- Unit serial number, if available.
- Existing sensor photo when necessary.
This information helps confirm the correct RPM sensor, especially when the same Thermo King product category contains several different sensor part numbers.





