Four Seasons 39703 A/C Expansion Valve

Four Seasons 39703 Expansion Valve Overview

Four Seasons 39703 is a block-type A/C expansion valve built for precise refrigerant flow control in mobile HVAC systems. It is a direct-fit style replacement for 2018-2022 Ford EcoSport applications with expansion valve service needs, using aluminum construction and sealing-washer connections for the liquid and suction ports.

Engineered for R134A and R1234YF systems, this Four Seasons expansion valve is made to meet or exceed OEM requirements and support stable evaporator performance. If you are servicing a Ford EcoSport A/C system and need a replacement expansion valve, part number 39703 is a focused OE-style solution.

Key Features

• Part number 39703 from Four Seasons
• Block-type A/C expansion valve for HVAC flow restriction control
• Aluminum construction for mobile A/C service applications
• Works with R134A and R1234YF refrigerants
• Liquid inlet: No. 6 with sealing washer style
• Liquid outlet: No. 8 with sealing washer style
• Suction inlet: No. 10 with sealing washer style
• Suction outlet: No. 10 with sealing washer style
• Meets or exceeds OEM specifications
• Mounting hardware included
• Designed for 1.000 tonnage and -1.500 super heat

Product Details

Four Seasons Expansion Valve line products are backed by more than 50 years of mobile A/C experience, with a focus on consistent refrigerant metering and long-term service life. The 39703 expansion valve is intended for Ford EcoSport HVAC repair work where accurate refrigerant control is needed to restore evaporator operation and system balance. This part cross-references Ford GN1Z19849C and YG817 for the same application.

Common Problems This Part Can Help Solve

• Weak or inconsistent cabin cooling in a Ford EcoSport
• Incorrect refrigerant metering at the evaporator
• A/C performance issues caused by a worn or restricted expansion valve
• System imbalance after HVAC service or component replacement
• Pressure and temperature control problems in R134A or R1234YF systems

Installation Notes and Tips

Fits 2018-2022 Ford EcoSport, expansion valve. Confirm refrigerant type, port style, and system cleanliness before installation. Replace sealing surfaces as needed, evacuate the system properly, and verify superheat and operating pressures after service. Use the correct service procedures for the vehicle’s A/C system to ensure proper valve operation.

Quality Assurance

Four Seasons states that its products are engineered and tested for years of trouble-free operation. The 39703 expansion valve is built to meet or exceed OEM requirements and reflects Four Seasons’ long-standing mobile A/C product experience.