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42-1312 Low Pressure Sensor for Thermo King
The 42-1312 Pressure Sensor is an aftermarket replacement for selected Thermo King transport refrigeration units. It monitors discharge refrigerant pressure and sends pressure data to the refrigeration control system.
Product Description
The 42-1312 Pressure Sensor works as a high-pressure or discharge pressure transducer for Thermo King refrigeration systems. It measures refrigerant pressure on the discharge side and provides an electrical signal to the unit control system.
The 42-1312 sensor has a 500 PSIG pressure range and a 1/8″ NPT male thread according to available parts references. Some catalog listings also identify it as a 3-pin pressure transducer. Always confirm the connector and mounting details before ordering.
This sensor fits selected Thermo King SL, SLX, SLXe, SLXi and T-Series refrigeration units. It can help the control system monitor refrigerant pressure and support proper refrigeration system operation.
Product Specifications
| Item | Details |
|---|---|
| Product Type | Pressure Sensor / Pressure Transducer |
| Main Part Number | 42-1312 |
| Alternative Number | 421312 |
| Pressure Type | High Pressure / Discharge Pressure |
| Pressure Range | 0–500 PSIG* |
| Thread | 1/8″ NPT Male* |
| Connector | 3-Pin* |
| Application | Thermo King Transport Refrigeration |
| Main Unit Series | SL, SLX, SLXe, SLXi, T-Series |
| Product Type | Aftermarket Replacement |
* Specifications may vary by supplier or production version. Please confirm the original sensor before purchase.
Main Function
- Measures discharge refrigerant pressure.
- Sends pressure signals to the control system.
- Supports refrigeration system monitoring.
- Helps the controller manage operating conditions.
- Provides pressure feedback for diagnostics.
Common Replacement Symptoms
A faulty pressure sensor may cause:
- Incorrect pressure readings
- Pressure-related alarm codes
- Unstable pressure signals
- Abnormal refrigeration operation
- Poor cooling performance
- Intermittent sensor signals
- Difficulty controlling system pressure
These symptoms can have other causes, so technicians should check the sensor, wiring, connector, and refrigeration system before replacement.
Application
The 42-1312 pressure transducer appears in parts references for selected:
| Thermo King Series | Example Models |
|---|---|
| SL | SL-100, SL-200, SL-300, SL-400, SL-400e |
| SLX | SLX-100, SLX-200, SLX-300, SLX-400, SLX Spectrum |
| SLXe | SLXe-100, SLXe-200, SLXe-300, SLXe-400 |
| SLXi | SLXi-100, SLXi-200, SLXi-300, SLXi-400, SLXi Spectrum |
| T-Series | T-600, T-800, T-1000, T-1200 and selected variants |
Available catalogs also list applications such as T-600R, T-800R, T-1000R, T-1200R and related Spectrum models. Exact compatibility depends on the unit configuration.
Cross-Reference Part Numbers
Common reference numbers include:
- 42-1312
- 421312
- 41-7962
- 417962
- 41-6555
- 416555
- 1E12218G07
- 41-5705
- 415705
- 3A86915G20
Several parts catalogs list these numbers as previous or cross-reference numbers for the 42-1312 pressure transducer.
Similar Products
42-1310 Pressure Sensor – commonly listed as a suction-side pressure transducer for selected Thermo King SL/SLX applications. It serves a different pressure-sensing position from 42-1312.
42-1313 Pressure Transducer – another Thermo King pressure transducer reference. Check the original part number and pressure-sensing position before substitution.
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
Before ordering, please provide the original part number, Thermo King unit model, serial number, connector type, and sensor location. This information helps confirm compatibility.
