Four Seasons 54771 A/C Evaporator Core

Overview of Four Seasons Evaporator Core 54771

The Four Seasons Evaporator Core 54771 is designed for reliable air conditioning performance in select INFINITI and Nissan vehicles. This A/C evaporator core is engineered to meet the specific dimensions and fitting requirements of models like the Nissan Pathfinder, Pathfinder Armada, QX4, and INFINITI G20.

• Compatible with INFINITI G20 and Nissan Pathfinder, Pathfinder Armada, QX4
• Part Number: 54771
• Core dimensions approximately 9.25 inches wide by 10.06 inches high
• Plate and fin type aluminum construction for efficient heat exchange
• Block fitting inlet and outlet for secure connections
• Includes green O-rings [24642] and [24677] for proper sealing

Four Seasons Evaporator Core Product Line Details

The Four Seasons Evaporator Core product line focuses on delivering precise fit and function for vehicle HVAC systems. This line features plate and fin type evaporator cores made from aluminum, providing effective cooling and durability. The 54771 model is part of this line, ensuring compatibility with specific Nissan and INFINITI models while maintaining OEM-style performance and fitment.

Technical Specifications and Features

The Four Seasons Evaporator Core 54771 measures approximately 9.25 inches in width and 10.06 inches in height, with a core depth of about 2.875 inches (73.025 mm). It uses a plate and fin design constructed from aluminum, which supports efficient heat transfer and corrosion resistance. Both the inlet and outlet fittings are block type, facilitating straightforward installation and secure hose connections. The included green O-rings ([24642] and [24677]) ensure a tight seal to prevent refrigerant leaks.

Applications and Common Issues Addressed

• Restores proper A/C cooling performance in Nissan Pathfinder and Armada models
• Replaces faulty or leaking evaporator cores in INFINITI G20 and Nissan QX4
• Solves issues related to reduced airflow or inconsistent cabin temperature
• Addresses refrigerant leaks caused by damaged or corroded evaporator cores
• Improves overall HVAC system efficiency and reliability

Installation Notes and Tips

Installation of the Four Seasons Evaporator Core 54771 requires access to the vehicle’s HVAC housing, which may involve dashboard removal depending on the model. Ensure all refrigerant is properly recovered before removal. Verify that the block fitting inlet and outlet connections match the vehicle’s lines. Replace O-rings with the included green O-rings to maintain a proper seal. It is recommended to inspect and clean the HVAC housing and related components during installation to prevent future issues.

Quality Assurance and Warranty

Four Seasons manufactures the Evaporator Core 54771 to meet industry standards for durability and performance. The aluminum construction and plate and fin design contribute to long service life. This part includes factory-installed O-rings to ensure leak-free operation. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary by region and distributor.