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42-1309 Low Pressure Sensor for Thermo King
The 42-1309 Pressure Sensor / Pressure Transducer is an aftermarket replacement for selected Thermo King transport refrigeration units. It monitors refrigeration system pressure and sends pressure information to the control system. Part number 42-2827 is also commonly listed as a replacement or cross-reference number.
Product Description
The 42-1309 Pressure Sensor for Thermo King helps the refrigeration system monitor pressure during operation. The sensor converts pressure changes into an electrical signal for the unit control system.
This Pressure Transducer fits a wide range of Thermo King transport refrigeration equipment. Common applications include selected SB, TS, SL, Spectrum, Sentry II, Super II, and Precedent units.
The part number 42-1309 also appears as 421309. 42-2827 / 422827 serves as an important cross-reference number for this pressure sensor.
Some supplier listings specify a 500 PSIG pressure range and 4-wire design for the 42-1309 Pressure Transducer. Confirm the pressure range and connector configuration against your original sensor before ordering.
Product Specifications
| Item | Specification |
|---|---|
| Product Type | Pressure Sensor / Pressure Transducer |
| Part Number | 42-1309 |
| Alternate Number | 421309 |
| Cross-Reference | 42-2827 / 422827 |
| Application | Thermo King transport refrigeration units |
| Function | Refrigeration system pressure monitoring |
| Configuration | 4-wire on some listed versions |
| Pressure Rating | 500 PSIG on some listed versions |
| Condition | Aftermarket replacement |
| Main Applications | SB, TS, SL, Spectrum, Sentry, Super, Precedent |
Note: The 500 PSIG rating and 4-wire configuration appear in current supplier listings. Confirm these specifications with your actual product before publishing them as fixed specifications.
Main Function
- Monitors refrigeration system pressure
- Sends pressure information to the control system
- Helps the refrigeration unit detect pressure changes
- Supports normal refrigeration system control
- Helps technicians diagnose pressure-related problems
Common Replacement Symptoms
A faulty Pressure Sensor may cause:
- Incorrect pressure readings
- Pressure-related alarms
- Unstable pressure signals
- Abnormal refrigeration operation
- Intermittent sensor signals
- Difficulty diagnosing the refrigeration system
These symptoms can also result from wiring, connector, or system problems. Check the complete circuit before replacing the sensor.
Application
| Thermo King Series | Common Models |
|---|---|
| SB Series | SB 100, SB 110, SB 190, SB 200, SB 210, SB 230, SB 300, SB 310, SB 400 |
| SB Multi-Temp | SB-30 Multi-Temp, SB-III Multi-Temp and selected related models |
| TS Series | TS 500, TS Spectrum |
| SL Series | SL 100, SL 100e, SL 200, SL 200e, SL 300, SL 400 |
| Spectrum | Spectrum 50, Spectrum DE, Spectrum SB and selected Multi-Temp units |
| Sentry / Super | Sentry II, Super II |
| Precedent | C-600, S-600, S-700, G-600, G-700 and selected 600M/610M/610DE applications |
Application lists vary by unit configuration. Always compare the original part number and equipment model before ordering.
Cross-Reference Part Numbers
| Part Number | Description |
|---|---|
| 42-1309 | Pressure Sensor / Pressure Transducer |
| 421309 | Part number without hyphens |
| 42-2827 | Common replacement / cross-reference number |
| 422827 | Part number without hyphens |
| 41-7959 | Listed as a related replacement number in some aftermarket catalogs |
The cross-reference numbers can vary between suppliers and applications. Verify the original sensor number before purchase.
Similar Thermo King Pressure Sensors
42-2827 Pressure Sensor
42-2827 is closely associated with 42-1309 and appears as a replacement/cross-reference number in multiple aftermarket catalogs.
42-1310 Pressure Transducer
42-1310 is another Thermo King Pressure Transducer, but it has a different pressure rating in supplier catalogs. Do not treat it as a direct replacement for 42-1309 without checking the application.
Why Choose This 42-1309 Pressure Sensor?
- Directly targets the Thermo King aftermarket
- Supports multiple Thermo King refrigeration applications
- Cross-references 42-2827
- Suitable for replacement and maintenance
- Available for B2B aftermarket parts supply
- Helps reduce equipment downtime when the original sensor fails
Suitable Customers
This Pressure Sensor suits:
- Thermo King parts distributors
- Transport refrigeration parts wholesalers
- Refrigeration equipment repair shops
- Fleet maintenance companies
- Thermo King service providers
- Aftermarket refrigeration parts importers
Ordering Information
Before ordering, please provide:
- Original part number
- Thermo King unit model
- Unit serial number, if available
- Connector or wire configuration
- Photos of the original sensor, if needed
This information helps confirm compatibility。
