Four Seasons 39113 A/C Expansion Valve - Rear

Four Seasons 39113 Expansion Valve

The Four Seasons 39113 expansion valve is a block-type A/C flow restrictor built for R134A systems. It is an aluminum, rear HVAC expansion valve for select Dodge Ram vans and Dodge B-series vans, with OE-style fitment details that support accurate refrigerant metering in the rear air conditioning circuit.

Key Features

• Four Seasons Expansion Valve, part number 39113
• Block type A/C expansion valve for R134A refrigerant systems
• Aluminum construction with aluminum finish
• Rear HVAC application for select Dodge vans
• Female FIO suction and liquid connections with insert O-ring sealing
• Meets or exceeds OEM requirements
• Designed without solenoid and without switch
• OE-style replacement for rear A/C service on Dodge Ram 1500 Van, Ram 2500 Van, Ram 3500 Van, B1500, B2500, and B3500

Product Details

Four Seasons 39113 is an A/C expansion valve from the Expansion Valve line, engineered for rear-position HVAC service on 1998-2003 Dodge Ram 1500 Van, 1998-2003 Dodge Ram 2500 Van, 1998-2003 Dodge Ram 3500 Van, and 1998 Dodge B1500, B2500, and B3500 models. This block-style valve uses female insert O-ring fittings on the suction and liquid sides, with No. 10 and No. 12 suction thread diameters and No. 6 and No. 8 liquid thread diameters for the specified application. The valve is specified for 2.000 tonnage and R134A refrigerant, making Four Seasons 39113 a direct-fit service part for rear A/C repair on these Dodge vans.

This part cross-references UAC EX529439C for the same application.

What It Helps Address

• Rear A/C outlet air that is too warm
• Irregular refrigerant flow through the evaporator circuit
• Expansion valve restriction or sticking in the rear HVAC system
• Loss of cooling performance in Dodge Ram van rear air conditioning
• Service replacement for worn or leaking OE-style valve assemblies

Installation Notes and Tips

Verify the vehicle’s rear HVAC configuration, refrigerant type, and fitting style before installation. Replace the O-rings at the connection points and confirm the system is properly evacuated and recharged after service. For fitment, this part fits 1998-2003 Dodge Ram 1500 Van, rear; 1998-2003 Dodge Ram 2500 Van, rear; 1998-2003 Dodge Ram 3500 Van, rear; and 1998 Dodge B1500, rear, B2500, rear, and B3500, rear.

Quality Assurance

Four Seasons 39113 is listed as meeting or exceeding OEM requirements for the specified application. The Four Seasons Expansion Valve line is built for OE-style HVAC service and accurate refrigerant control in supported vehicle applications.