Four Seasons 37344 HVAC Pressure Transducer

Four Seasons 37344 Pressure Switch

Four Seasons 37344 is a system-mounted HVAC pressure transducer for low-side pressure monitoring. It uses a round female connector with a 3-terminal pin design and variable open/closed operation for accurate pressure signal output in the A/C system.

This Four Seasons Pressure Switch line is built for direct replacement service in vehicles that rely on precise refrigerant pressure feedback. It is a practical choice for Chevrolet Bolt EV, Chevrolet Malibu, Chevrolet Volt, and other GM applications listed below.

Key Features

• HVAC pressure transducer for low-side pressure sensing
• System-mounted design for direct service replacement
• Round female connector with pin-style connection
• 3-terminal configuration
• Female fitting with M10 x 1.25 thread and M12 x 1.50 fitting thread size
• Meets or exceeds OEM requirements
• Four Seasons 37344 part number for catalog matching

Product Details

Four Seasons 37344 is a pressure switch/transducer used in automotive HVAC systems to monitor low-side refrigerant pressure and send the proper signal to the vehicle control system. The variable comp open/closed operation supports pressure-based system control, helping the A/C system respond correctly under changing operating conditions. This part is a direct-fit style replacement for a wide range of Chevrolet, Cadillac, and GMC applications, including Chevrolet Bolt EV, Chevrolet Malibu, and Chevrolet Volt.

This part cross-references UAC SW11173C for the same application.

What It Helps Address

• Inoperative air conditioning due to incorrect low-side pressure signal
• Compressor cycling problems tied to pressure switch failure
• A/C system shutdown caused by faulty transducer input
• Intermittent HVAC performance from damaged connector or sensor wear
• Diagnostic trouble codes related to refrigerant pressure monitoring

Installation Notes and Tips

• Verify connector shape, terminal count, and thread size before installation.
• Confirm the vehicle uses a low-side, system-mounted pressure switch application.
• Inspect the mating connector and sealing surfaces for corrosion or damage before replacement.
• Use the listed fitment to confirm application on Chevrolet Bolt EV, Chevrolet Malibu, Chevrolet Volt, Cadillac CT6, and other supported models.

Quality Assurance

Four Seasons 37344 meets or exceeds OEM requirements for the listed applications. It is cataloged as an HVAC pressure transducer in the Four Seasons Pressure Switch line for service replacement use.