Denso 475-2091 A/C Expansion Valve

Denso New Expansion Valve for Ford Fusion, Lincoln MKZ, and Mercury Milan

Denso 475-2091 is a block-style A/C expansion valve built to regulate refrigerant flow between the high- and low-pressure sides of the air conditioning system. For 2010-2012 Ford Fusion, 2010-2012 Lincoln MKZ, and 2010-2011 Mercury Milan applications, this valve helps maintain proper evaporator performance and stable cabin cooling.

The Denso New Expansion Valve line focuses on correct calibration for vehicle-specific HVAC systems. In an A/C system, accurate refrigerant metering is critical; if flow is off, the evaporator can lose heat exchange efficiency or freeze, which can lead to additional system damage. Part number 475-2091 is built for direct replacement use in the listed Ford, Lincoln, and Mercury applications.

Key Features

• Block valve design for automotive A/C refrigerant control
• Regulates liquid refrigerant entering the evaporator
• Supports proper separation of suction and discharge sides
• OE-style replacement for listed Ford Fusion, Lincoln MKZ, and Mercury Milan vehicles
• Cross-references Ford AE5Z 19849-A and Four Seasons 39322 for the same application
• Denso part number 475-2091 for HVAC service and repair

Detailed Description

This A/C expansion valve is used to meter refrigerant into the evaporator at the correct rate so the HVAC system can absorb heat efficiently. Denso applies its experience in automotive thermal systems to supply a replacement valve calibrated for the specified vehicles. If you are servicing a 2010-2012 Ford Fusion, 2010-2012 Lincoln MKZ, or 2010-2011 Mercury Milan, 475-2091 is the direct-fit expansion valve referenced for those applications.

Common Issues This Part May Resolve

• Weak or inconsistent cabin cooling
• Evaporator icing or freeze-up
• Improper refrigerant metering through the evaporator
• Reduced A/C system efficiency
• HVAC performance problems after expansion valve wear or failure

Installation Notes and Tips

Verify the vehicle’s A/C diagnosis before replacement and confirm the part number against the original valve. During service, inspect the surrounding HVAC components, recover and recharge refrigerant properly, and follow the vehicle manufacturer’s repair procedures for the Ford Fusion, Lincoln MKZ, or Mercury Milan application.

Quality Assurance

Denso manufactures HVAC components with vehicle-specific calibration in mind, helping ensure the expansion valve matches the refrigerant control requirements of the listed applications. Part number 475-2091 is intended for the confirmed fitments shown above.