Four Seasons 37335 HVAC Pressure Transducer

Four Seasons 37335 Pressure Switch

The Four Seasons 37335 is a system-mounted HVAC pressure transducer for Volvo climate control systems. It uses a rectangular 3-pin male connector and a 3/8 in. x 24 male fitting for direct replacement service on supported applications, including Volvo XC90, S60, V70, XC70, S80, S40, and V40 models.

Key Features

• Four Seasons Pressure Switch line
• Part number 37335
• HVAC pressure transducer, system mounted
• Rectangular male connector with 3 terminals
• 3/8 in. x 24 male threaded fitting
• Variable open/closed operation
• Meets or exceeds OEM requirements

Product Details

Four Seasons 37335 is an HVAC pressure transducer used to monitor refrigerant system pressure and communicate that signal through the vehicle’s HVAC control circuit. The pressure switch design, male pin connector, and threaded system-mount fitting support direct replacement on Volvo applications that use this configuration. This part cross-references Global Parts Distributors LLC 1712091 for the same application.

Compatible fitment includes 2003-2014 Volvo XC90, 2001-2009 Volvo S60, 2001-2007 Volvo V70, 2003-2007 Volvo XC70, 1999-2006 Volvo S80, 2004 Volvo S40 with rectangular connector, 2000-2004 Volvo V40, and 2000-2003 Volvo S40. The Four Seasons 37335 is also referenced by aftermarket numbers such as 203735 and MT3509 for related Volvo HVAC service needs.

Common Issues This Part May Address

• Inaccurate A/C pressure signal to the HVAC control system
• Compressor cycling problems caused by a faulty pressure transducer
• A/C system shutdown triggered by pressure switch failure
• Intermittent cooling performance on Volvo HVAC systems
• Diagnostic trouble codes related to refrigerant pressure sensing

Installation Notes and Tips

Verify the connector shape, terminal count, and 3/8 in. x 24 thread size before installation. Confirm the vehicle uses a system-mounted pressure transducer in the listed Volvo application, and compare the original part number and connector style to the replacement unit. For best results, inspect the HVAC circuit for corrosion, damaged terminals, or refrigerant system faults before installing the new switch.

Quality Assurance

This Four Seasons pressure switch meets or exceeds OEM specifications for the listed applications. Four Seasons 37335 is built for direct-fit replacement service in supported Volvo HVAC systems.