Four Seasons 39364 A/C Expansion Valve - Rear

Four Seasons 39364 Expansion Valve Overview

Four Seasons 39364 is a block-type A/C expansion valve for R134A systems, built in aluminum and engineered for rear HVAC service on select Ford Expedition and Lincoln Navigator applications. This Four Seasons Expansion Valve line is focused on precise refrigerant metering, helping maintain stable evaporator performance in the rear air conditioning circuit.

Compatible With 2007-2017 Ford Expedition, rear, and 2007-2012 Lincoln Navigator, rear. This part number, 39364, is a direct-fit style replacement that meets or exceeds OEM requirements for the listed applications.

Key Features

• Block-type A/C expansion valve for rear HVAC systems
• Aluminum construction with aluminum finish
• R134A refrigerant type
• Female suction and liquid connections with sealing washer style interfaces
• Mounting hole quantity: 2
• Style: w/o solenoid
• Super heat setting: 11.000
• Meets or exceeds OEM specifications

Product Details

The Four Seasons Expansion Valve product line is built for accurate refrigerant flow control in automotive air conditioning systems. Part number 39364 uses a block-type design with female inlet and outlet fittings, including suction inlet and outlet sizes matched to the listed rear HVAC applications. Its aluminum construction supports corrosion resistance in the A/C circuit, while the sealing washer connection style helps maintain proper sealing at the liquid and suction ports. This valve is specified for rear use on Ford Expedition and Lincoln Navigator models, making it a focused replacement for vehicles with rear climate control service needs.

This part cross-references UAC EX10243C for the same application.

Common A/C Problems This Part Addresses

• Rear A/C vent temperatures that are too warm or inconsistent
• Restricted refrigerant metering at the evaporator
• Erratic cooling performance in the rear HVAC circuit
• Expansion valve leakage at the connection points
• Service replacement for a worn or sticking valve

Installation Notes and Tips

Verify the vehicle uses R134A refrigerant and confirm rear HVAC service requirements before installation. Inspect the sealing washer surfaces, O-ring locations, and mating lines for wear or contamination, and replace damaged components as needed during A/C service. Proper evacuation, leak checking, and recharge procedures are important after replacement to restore correct system operation.

Quality Assurance

Four Seasons 39364 is listed as meeting or exceeding OEM requirements for the specified applications. The part is built to OE-style fit and function standards for rear A/C service on the covered Ford Expedition and Lincoln Navigator models.