Denso 475-2080 A/C Expansion Valve - Front

Denso New Expansion Valve 475-2080

Denso 475-2080 is a block-style A/C expansion valve for vehicles that need precise refrigerant control at the evaporator. It separates the low and high sides of the air conditioning system and regulates liquid refrigerant flow to help maintain stable cooling performance.

This New Expansion Valve line reflects Denso’s focus on OE-style A/C service parts for Honda and Acura applications, including Honda Pilot, Honda Ridgeline, and Acura MDX fitments. The correct calibration matters because an expansion valve that is out of spec can reduce heat exchange at the evaporator or contribute to freeze-up.

Key Features

• Block valve design for automotive A/C refrigerant metering
• Controls liquid refrigerant flow through the evaporator
• Supports proper separation of suction and discharge sides in the HVAC system
• OE-specified O-rings included for listed applications
• Direct-fit replacement for select Honda and Acura models
• Part number: 475-2080

Detailed Description

Denso 475-2080 is an A/C expansion valve built for precise refrigerant regulation in the evaporator circuit. It is used in front A/C and main A/C applications on select Honda Pilot, Honda Ridgeline, and Acura MDX vehicles, where accurate metering is critical to consistent cabin cooling. If the valve calibration is incorrect, the evaporator can lose heat-transfer efficiency or freeze, which can lead to additional A/C system damage.

This part cross-references Four Seasons 39271 for the same application. The Denso New Expansion Valve product line is engineered for vehicle-specific A/C service, making it a practical choice when replacing a worn or restricted expansion valve on 2006-2015 Honda and Acura platforms. Part number 475-2080 is also a useful reference when searching for a Honda Pilot A/C expansion valve, Honda Ridgeline HVAC flow restrictor, or Acura MDX front A/C expansion valve.

What It Helps Solve

• Weak or inconsistent A/C cooling
• Evaporator freeze-up from incorrect refrigerant metering
• Restricted refrigerant flow through the evaporator
• Loss of proper suction and discharge side separation
• HVAC performance issues on Honda Pilot, Honda Ridgeline, and Acura MDX applications

Installation Notes and Tips

Verify the vehicle’s year, model, and A/C configuration before installation. Confirm the valve style matches the original block valve layout and use the OE-specified O-rings included for the listed applications. After installation, evacuate and recharge the system according to factory service procedures and check for leaks and proper vent temperature.

Quality Assurance

Denso draws on decades of A/C engineering experience supplying components and systems to automakers. That OE-focused background supports accurate fitment and refrigerant control for the listed Honda and Acura applications.