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Four Seasons 37815 HVAC Cut-Off Switch
| Brand | Four Seasons 37815 |
|---|---|
| Color | Black |
| Connector Gender | Male |
| Connector Shape | Rectangular |
| Description | Switch-pressure /system mount |
| Fitting Thread Size | M10 x 1.25 |
| Meets / Exceeds OEM? | Yes |
| Mnt Sys Loc | System mounted |
| Number of Terminals | 2 |
| Off Pressure | 285 |
| Style | High cut-out |
| Type | Pressure |
| Voltage | 12 |
| Fits | — |
OE direct replacement. Meets or exceeds OEM requirements for dependable service.
High cut-out style. Helps protect the HVAC system by opening at 285 pressure.
System-mounted pressure switch. Built with a male rectangular connector and M10 x 1.25 thread.
Cross-references ATP 111002, Four Seasons 37815 and 20PS3321 for the same application. See all 13.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Four Seasons 37815 Pressure Switch
The Four Seasons 37815 is a system-mounted HVAC cut-off switch built for 12-volt automotive air conditioning systems. It uses a black housing, a male rectangular connector, and an M10 x 1.25 fitting thread size for a direct-style pressure switch application.
As part of the Four Seasons Pressure Switch line, this component is designed for pressure-based HVAC control where a high cut-out setting is required. It meets or exceeds OEM requirements and is a practical choice for service work on vehicles such as Honda Civic and Toyota Camry HVAC systems when the original pressure switch specification matches this application.
Key Features
- Four Seasons Pressure Switch line, part number 37815
- HVAC cut-off switch with high cut-out pressure design
- System mounted pressure switch configuration
- 12-volt electrical specification
- Male rectangular connector with 2 terminals
- M10 x 1.25 fitting thread size
- Black housing
- Meets or exceeds OEM requirements
Product Details
The Four Seasons 37815 pressure switch monitors HVAC system pressure and signals the system to cut off at the specified high-pressure threshold. With an off pressure rating of 285, this switch supports pressure control in automotive air conditioning circuits where accurate system-mounted switching is required. If you are replacing a failed HVAC pressure switch on a Honda Civic or Toyota Camry, confirm the connector style, thread size, voltage, and pressure specification before installation. This part cross-references A14165 and 172286 for the same application.
Common Problems It Can Address
- Air conditioning compressor cycling caused by a faulty pressure switch
- HVAC system shutdown from incorrect pressure signal input
- Compressor protection issues related to high-pressure cutoff control
- Intermittent A/C operation from worn switch contacts or connector issues
- Pressure switch replacement needs during HVAC service on Honda Civic and Toyota Camry applications
Installation Notes and Tips
Verify the M10 x 1.25 thread size, 2-terminal male connector, and 12-volt system specification before replacement. Match the switch location and pressure rating to the original part number to avoid HVAC control faults. Inspect the connector and sealing surfaces during installation, and confirm proper system pressure after service.
Quality Assurance
Four Seasons manufactures this pressure switch to meet or exceed OEM requirements for HVAC service applications. Part number 37815 is built for direct replacement use where the original system-mounted high cut-out pressure switch specification is required.
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