OE Quality
60-Day Returns

Four Seasons 36665 HVAC Cut-Off Switch
Overview of Four Seasons Pressure Switch 36665
The Four Seasons Pressure Switch 36665 is a system-mounted HVAC cut-off switch designed for select Chrysler, Dodge, and Plymouth vehicles. Engineered to meet or exceed OEM specifications, this black steel pressure switch ensures reliable operation within your vehicle's air conditioning system.
- Compatible with Chrysler Caravan, Grand Caravan, Grand Voyager, Imperial, New Yorker, Town & Country, and Voyager models
- Operates as a low cut-out switch with pressure activation at 42 psi (off) and 43 psi (on)
- Features a 3/8 in. x 24 fitting thread size for secure system mounting
- Includes two terminals and an open connector shape for harness compatibility
- Constructed from durable steel material for long-lasting performance
Detailed Product Description
The Four Seasons Pressure Switch 36665 is part of the Pressure Switch product line, which specializes in pressure-activated HVAC components designed to maintain system safety and efficiency. This particular low cut-out switch is engineered to open at 42 psi and close at 43 psi, protecting the air conditioning system from pressure irregularities. Its system-mounted design and 3/8 in. x 24 fitting thread size allow for straightforward installation and secure attachment within the HVAC system. The switch features two terminals and an open connector shape compatible with harness connector 37219, ensuring proper electrical connectivity. Constructed from steel and finished in black, this switch is built to withstand the demands of automotive HVAC environments.
Applications and Common Issues Addressed
- Prevents compressor damage by cutting off operation at low pressure
- Protects HVAC system from pressure-related failures
- Ensures proper cycling of the air conditioning compressor in Chrysler Caravan and Dodge Grand Caravan models
- Maintains system integrity in Plymouth Voyager and Town & Country vehicles
- Helps avoid costly repairs related to pressure switch failure in compatible models
Installation Notes and Tips
- Verify compatibility with your vehicle’s make and model before installation
- Ensure the system is depressurized prior to removing the old pressure switch
- Use the correct 3/8 in. x 24 fitting thread size to avoid leaks
- Connect the harness connector 37219 securely to the switch terminals
- Test the system pressure to confirm proper switch operation after installation
Quality Assurance and Warranty
The Four Seasons Pressure Switch 36665 meets or exceeds OEM standards, providing reliable performance for your vehicle’s HVAC system. Manufactured with high-quality steel and designed for system mounting, this switch is built to last under normal operating conditions. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.
| Brand | Four Seasons |
| Part Number | 36665 |
| Position | Pressure Switch |
| Color | Black |
| Comp Open/Closed | Open |
| Connector Shape | Open |
| Description | Switch-Pressure /System Mount |
| Fitting Thread Size | 3/8 in. x 24 |
| Harness Connector | [37219] / Harness Connector |
| Item Included A Desc | 24606 |
| Item Included A Qty. | 1 |
| Material | Steel |
| Meets / Exceeds OEM? | YES |
| Mnt Sys Loc | System Mounted |
| Number of Terminals | 2 |
| Operate Psi Low Off | 42 |
| Operate Psi Low On | 43 |
| Style | Pressure |
| Type | Low Cut-Out |
This part fits 31 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1993 | Chrysler | Town & Country | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1993 | Dodge | Caravan | 3.3L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1993 | Dodge | Caravan | 3.0L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1993 | Dodge | Grand Caravan | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1993 | Plymouth | Grand Voyager | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1993 | Plymouth | Voyager | 3.3L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1993 | Plymouth | Voyager | 3.0L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1992 | Chrysler | New Yorker | Salon | 3.3L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch |
| 1992 | Chrysler | Town & Country | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1992 | Dodge | Caravan | 3.3L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1992 | Dodge | Caravan | 3.0L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1992 | Dodge | Grand Caravan | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1992 | Plymouth | Voyager | 2.5L | L4 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1991 | Chrysler | Imperial | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1991 | Chrysler | New Yorker | Salon | 3.3L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch |
| 1991 | Chrysler | Town & Country | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1991 | Dodge | Caravan | 3.3L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1991 | Dodge | Caravan | 3.0L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1991 | Dodge | Grand Caravan | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1991 | Plymouth | Grand Voyager | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1991 | Plymouth | Voyager | 3.3L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1991 | Plymouth | Voyager | 3.0L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1990 | Chrysler | Imperial | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1990 | Chrysler | New Yorker | Landau | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | ||
| 1990 | Chrysler | New Yorker | Salon | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | ||
| 1990 | Chrysler | Town & Country | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1990 | Dodge | Caravan | 3.3L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1990 | Dodge | Caravan | 3.0L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |
| 1990 | Dodge | Grand Caravan | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1990 | Plymouth | Grand Voyager | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch | |||
| 1990 | Plymouth | Voyager | 3.0L | V6 | N/A | Mount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.