Four Seasons 39474 A/C Expansion Valve - Front

Four Seasons 39474 Expansion Valve Overview

The Four Seasons 39474 expansion valve is a block-type A/C flow restrictor built for R134A systems. It is an aluminum, OE-style replacement for the front HVAC circuit on select Honda Odyssey models, with fitment covering 2011-2014 and 2015-2017 vehicles.

For Honda Odyssey A/C repair work, this expansion valve helps restore proper refrigerant metering at the evaporator. The Four Seasons Expansion Valve line focuses on direct-fit service parts, and part number 39474 is listed as meeting or exceeding OEM requirements.

Key Features

• Four Seasons Expansion Valve, part number 39474
• Block-type A/C expansion valve for R134A refrigerant systems
• Aluminum construction with aluminum finish
• OE-style replacement that meets or exceeds OEM specifications
• Designed for front HVAC applications on Honda Odyssey models
• Liquid and suction connections use sealing washer and captured O-ring styles
• Style without solenoid

Detailed Product Description

This A/C expansion valve regulates refrigerant flow into the evaporator so the system can maintain proper cooling performance. The Four Seasons 39474 uses a block-type design with female fittings, aluminum construction, and connection sizes matched to the listed application. It is specified for R134A refrigerant and includes the fitment details needed for service on 2011-2014 Honda Odyssey and 2015-2017 Honda Odyssey front A/C systems. This part cross-references UAC EX10437C for the same application.

What This Part Helps Address

• Weak or inconsistent cabin cooling
• Incorrect refrigerant metering at the evaporator
• Front A/C performance issues on Honda Odyssey models
• System restriction concerns related to a worn expansion valve
• Service replacement needs for R134A HVAC systems

Installation Notes and Tips

Verify the vehicle’s refrigerant type, connection style, and mounting layout before installation. This valve uses two mounting holes and is configured for female suction and liquid connections with sealing washer and captured O-ring interfaces. Always inspect the mating O-rings and sealing surfaces during A/C service, evacuate and recharge the system according to factory procedures, and confirm proper superheat and vent temperature after repair. Fits 2011-2013 Honda Odyssey, front; fits 2014 Honda Odyssey, N/A; fits 2015-2017 Honda Odyssey, front.

Quality Assurance

Four Seasons lists this expansion valve as meeting or exceeding OEM requirements, making it a direct replacement option for service technicians and DIY repairs on the specified Honda Odyssey applications.