Four Seasons 54728 A/C Evaporator Core - Rear

Rear A/C Evaporator Core for Quest and Villager

Four Seasons 54728 is a rear A/C evaporator core built for the HVAC system in select 1999-2002 Mercury Villager and Nissan Quest models. This aluminum, plate-and-fin core is sized for the rear evaporator location and uses OE-style fitting types for service replacement.

Key Features

• Four Seasons Evaporator Core, part number 54728
• Fits rear HVAC applications in 1999-2002 Mercury Villager and 1999-2002 Nissan Quest
• Aluminum plate-and-fin construction
• Core dimensions: 9-5/8 in. width, 8-1/8 in. height, 3-5/8 in. depth
• Inlet fitting: No. 8 female O-ring
• Outlet fitting: No. 10 female springlock
• Includes OE-style O-ring specifications for the listed application

Detailed Description

Four Seasons 54728 is an A/C evaporator core designed for rear HVAC service on the Mercury Villager and Nissan Quest. The aluminum plate-and-fin design supports efficient refrigerant heat transfer in a compact core measuring 244.475 mm wide, 206.375 mm high, and 92.075 mm deep. With a No. 8 female O-ring inlet and No. 10 female springlock outlet, this evaporator core matches the connection style used in the listed rear air conditioning applications. This part cross-references UAC EV939544PFC for the same application.

Common Repair Symptoms

• Rear A/C air that is warm or not cooling properly
• Refrigerant leakage at the evaporator core
• Reduced airflow or inconsistent rear cabin cooling
• Corrosion or damage found during HVAC system service
• Need for a direct replacement during rear evaporator repair

Installation Notes and Tips

Verify the rear HVAC configuration before installation and compare the inlet and outlet fitting styles to the original unit. Inspect the O-ring sealing surfaces, replace damaged seals as needed, and confirm the core dimensions match the removed part. After installation, evacuate and recharge the system according to the vehicle service procedure and check for leaks at all connections.

Quality Assurance

Four Seasons supplies HVAC replacement components for automotive air conditioning service, and this evaporator core is built to match the listed fitment and connection specifications for the application.