Four Seasons 20990 HVAC Pressure Transducer

Four Seasons 20990 HVAC Pressure Transducer

Four Seasons 20990 is a system-mounted HVAC pressure transducer built for vehicles that rely on accurate refrigerant pressure feedback. It uses a 3-pin round female connector and an M10 x 1.25 female thread fitting for a direct-style service replacement on supported Ford, Lincoln, Mercury, and Mazda applications.

The Four Seasons Pressure Switch line focuses on OE-style HVAC control components, and this transducer meets or exceeds OEM requirements. It is a practical choice for restoring proper A/C pressure signal input on vehicles such as the Ford Focus, Ford F-150, and Lincoln Navigator.

Key Features

• Part number 20990 HVAC pressure transducer for system-mounted applications
• 3-terminal design with round female connector
• Female M10 x 1.25 threaded fitting
• Variable open/closed operation for pressure signal control
• Plastic and metal construction
• Weather Pack connection for improved sealing
• Meets or exceeds OEM specifications

Application Details

This Four Seasons 20990 pressure transducer is used in HVAC systems that monitor refrigerant pressure and send a variable signal to the control circuit. It cross-references Gates 20993 for the same application. Common vehicle coverage includes 2008-2018 Ford Focus, 2011-2013 Ford Fiesta, 2009-2013 Mazda 6, 2007-2011 Ford Expedition, 2006-2011 Lincoln Navigator, and 2007-2010 Ford F-150.

Additional coverage includes Ford Escape, Explorer, Mustang, Taurus, Flex, F-250, Lincoln MKX, MKS, MKT, Mercury Mariner, Mountaineer, Sable, and Mazda Tribute applications listed in the fitment data. If your Ford Focus, Ford F-150, or Lincoln Navigator HVAC system is showing pressure-related faults, this part number 20990 is the type of replacement used to restore the pressure input signal.

What It Helps Fix

• HVAC pressure signal faults
• A/C compressor cycling problems caused by incorrect pressure input
• Loss of refrigerant pressure feedback to the control system
• Pressure switch or transducer electrical connector issues on supported vehicles
• System-mounted HVAC pressure sensor replacement needs

Installation Notes

Verify connector shape, terminal count, and M10 x 1.25 thread size before installation. This transducer is system mounted and uses a female connector, so matching the original harness and fitting style is important for proper installation. Confirm vehicle-specific fitment for the exact year, make, and model before ordering.

Quality Assurance

Four Seasons 20990 is built to meet or exceed OEM requirements for the listed applications. The part is designed as an OE-style HVAC pressure transducer for reliable service on supported Ford, Lincoln, Mercury, and Mazda vehicles.