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ZZ3F05206
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40-974 Graded Sensor Air Temperature Fit for Thermo King CF-II CSR40 MD-11 SR
$59.19
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
40-974 Graded Sensor Air Temperature for Thermo King
This 40-974 graded sensor air temperature sensor is built to replace the original temperature sensor in Thermo King CF-II, CSR40, MD-11, and SR refrigeration units, providing accurate air temperature readings for reliable system operation.
Overview
This 40-974 graded sensor measures air temperature and feeds the data to the Thermo King controller, helping maintain setpoint conditions inside the cargo box. Designed for Thermo King CF-II, CSR40, MD-11, and SR models, this sensor matches the electrical and mechanical specifications of the original part. It is an aftermarket replacement component, not an original Thermo King product.
Built For Performance
- Graded temperature response for precise monitoring
- Direct fit for Thermo King CF-II, CSR40, MD-11, and SR units
- Corrosion-resistant housing for harsh environments
- Stable output across wide temperature range
- Replaces OEM part number 40-974
Fits These Machines
- for Thermo King CF-II
- for Thermo King CSR40
- for Thermo King MD-11
- for Thermo King SR
On-The-Job Use
- Monitors air temperature inside refrigerated trailers and truck bodies
- Supports frozen and perishable cargo transport
- Used in over-the-road and intermodal refrigeration systems
Specs At A Glance
| Part Number(s) | 40-974 |
| Sensor Type | Graded Air Temperature Sensor |
| Compatible Brand | for Thermo King |
Good To Know
Q: Can this sensor be used in any Thermo King unit? A: It is specifically designed for CF-II, CSR40, MD-11, and SR models; always verify your unit model before ordering.
Q: What does the graded designation mean? A: The grading indicates the sensor's resistance curve calibration, which helps the controller interpret temperature readings accurately.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.