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Four Seasons 37316 A/C Trinary Switch
| Brand | Four Seasons 37316 |
|---|---|
| Comp Open/Closed | Open |
| Connector Gender | Female |
| Connector Shape | Oval |
| Description | System Mounted Trinary Pressure Switch |
| Fan Open/Closed | Open |
| Fitting Gender | Male |
| Fitting Thread Size | 3/8" x 24 |
| Item Included A Desc | 24606 |
| Item Included A Qty. | 1 |
| Material | Steel |
| Meets / Exceeds OEM? | YES |
| Mnt Sys Loc | System Mounted |
| Number of Terminals | 4 |
| Operate Psi High Off | 385 |
| Operate Psi High On | 290 |
| Operate Psi Low On | 28 |
| Operate Psi Med Off | 195 |
| Operate Psi Med On | 220 |
| Style | Pressure |
| Terminal Type | Pin |
| Type | Trinary |
| Voltage | 12 |
| Weather Pack? | Yes |
| Product line | Pressure Switch |
| Fits | INFINITI · 5 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable system control.
Trinary pressure switch. Monitors pressure to help manage compressor and fan operation.
Steel construction. Built with a weather-pack connector for secure electrical connection.
Cross-references Four Seasons 37316, 50028 and 203716 for the same application. See all 10.
Four Seasons 37316 A/C Trinary Switch
The Four Seasons Pressure Switch 37316 is a system-mounted trinary pressure switch for 12-volt HVAC systems. It uses a 4-terminal, oval female connector with a 3/8" x 24 male fitting and steel construction for direct A/C system pressure control.
Compatible with 1993-1997 INFINITI J30 pressure switch applications, this Four Seasons 37316 trinary switch is built to meet or exceed OEM requirements and uses a Weather Pack connection for secure electrical engagement.
Key Features
- System-mounted trinary pressure switch for A/C clutch and compressor control
- 12-volt design with 4 terminals
- Oval female connector with pin terminals
- 3/8" x 24 male threaded fitting
- Steel housing with Weather Pack connection
- Meets or exceeds OEM specifications
- Four Seasons Pressure Switch line part number 37316
Product Details
The Four Seasons Pressure Switch line is built for HVAC pressure management in automotive A/C systems. Part number 37316 is a trinary switch that monitors system pressure and provides control inputs for compressor and fan operation based on pressure thresholds. It is designed for system-mounted installation and is listed for 1993-1997 INFINITI J30 pressure switch applications. This part cross-references A03716 and 50028 for the same application.
Common Issues This Part May Address
- A/C compressor cycling that does not respond correctly to system pressure
- Cooling fan control faults tied to pressure switch input
- Loss of compressor engagement due to pressure switch failure
- Incorrect high- or low-pressure cutoff behavior in the HVAC circuit
- Electrical connection problems at the pressure switch interface
Installation Notes and Tips
Verify the connector style, terminal count, and 3/8" x 24 fitting before installation. Confirm the vehicle uses a system-mounted trinary pressure switch and compare the original switch’s pressure settings to the replacement part. After installation, inspect the A/C system for proper refrigerant charge and check compressor and fan operation during system testing.
Quality Assurance
Four Seasons 37316 is manufactured to meet or exceed OEM specifications for pressure switch performance and fitment. The steel construction and Weather Pack connection support reliable service in automotive HVAC environments.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1997 | INFINITI | J30 | N/A | Pressure Switch |
| 1996 | INFINITI | J30 | N/A | Pressure Switch |
| 1995 | INFINITI | J30 | N/A | Pressure Switch |
| 1994 | INFINITI | J30 | N/A | Pressure Switch |
| 1993 | INFINITI | J30 | N/A | Pressure Switch |
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