Four Seasons 37631 HVAC Blower Control Switch

Four Seasons Selector Switch for Ford HVAC Control

The Four Seasons 37631 is an HVAC blower control switch built for Ford vehicles that use a selector-style blower control. It features a male square connector, 4 terminals, and an OE-style fitment profile for direct replacement in supported applications.

Four Seasons Selector Switch parts are built for HVAC service work where accurate blower speed selection matters. This 37631 switch is listed for multiple Ford Expedition, F-150, F-250 Super Duty, F-350 Super Duty, Mustang, Taurus, and Taurus X applications, including vehicles with and without Automatic Temperature Control depending on model year.

Key Features

• Four Seasons part number 37631
• HVAC blower control switch / selector switch
• Male connector with square shape
• 4-terminal electrical connection
• Meets or exceeds OEM requirements
• Direct-fit replacement for supported Ford HVAC systems

Detailed Product Overview

This blower switch is used to restore manual or automatic HVAC fan-speed selection in the cabin control panel. It is listed for 2007-2017 Ford Expedition, 2007-2010 Ford F-150, 2007-2010 Ford F-250 Super Duty, 2007-2010 Ford F-350 Super Duty, 2007-2009 Ford Mustang, 2008-2009 Ford Taurus, and 2008-2009 Ford Taurus X applications, with fitment varying by ATC or manual HVAC configuration. If you are searching for a Ford Expedition blower motor switch, Ford F-150 HVAC selector switch, or Four Seasons 37631 replacement, verify the vehicle’s HVAC setup before ordering.

This part cross-references A10231 and SW9275 for the same application.

What It Helps Fix

• Inoperative blower speed selection
• Intermittent fan operation from a worn switch
• HVAC controls that no longer respond consistently
• Loss of cabin airflow control in Ford Expedition, F-150, or Super Duty trucks
• Faulty selector input on supported Mustang, Taurus, and Taurus X HVAC systems

Installation Notes and Tips

Confirm the connector shape, terminal count, and HVAC configuration before installation. Fitment varies between ATC and non-ATC systems on several Ford models, so match the vehicle year and HVAC control type to the listing. Compare the original switch and connector before replacing the part.

Quality Assurance

Four Seasons lists this selector switch as meeting or exceeding OEM requirements for the specified applications. Use the vehicle fitment details to confirm the correct replacement before installation.