Four Seasons 54871 A/C Evaporator Core - Rear

Reliable A/C Evaporator Core for Cadillac, Chevrolet, and GMC

The Four Seasons Evaporator Core 54871 is engineered to restore efficient air conditioning performance in select Cadillac, Chevrolet, and GMC vehicles. Designed with precision, this A/C evaporator core ensures proper cooling and system reliability for models like the Escalade ESV, Suburban 1500, Suburban 2500, Yukon XL 1500, and Yukon XL 2500.

• Compatible with Cadillac Escalade ESV, Chevrolet Suburban 1500/2500, GMC Yukon XL 1500/2500
• Part number 54871 for accurate replacement
• Constructed from durable aluminum with plate & fin design
• Dimensions: Width approx. 13.375" to 13.5", Height 8.25" to 8.5", Depth 2.875"
• Block fitting inlet and outlet with No. 6 / No. 8 outside diameter
• Includes four O-rings: slimline washers and green O-rings for secure sealing

About the Four Seasons Evaporator Core Product Line

The Four Seasons Evaporator Core line focuses on delivering reliable HVAC components designed to meet OEM specifications. This product line emphasizes quality materials such as aluminum and plate & fin construction to ensure efficient heat exchange and durability. The 54871 evaporator core is part of this line, providing a direct-fit solution for specific GM full-size SUVs and trucks.

Detailed Product Description and Specifications

This A/C evaporator core features a plate & fin design made from aluminum, offering effective heat transfer and corrosion resistance. The core dimensions vary slightly, with widths between 13.375 and 13.5 inches, heights from 8.25 to 8.5 inches, and a consistent depth of 2.875 inches (73.025 mm). The inlet and outlet fittings are block type with outside diameters of No. 6 and No. 8, ensuring compatibility with factory HVAC lines. Included are four O-rings—two slimline washers and two green O-rings—to provide a secure, leak-free installation.

Common Issues Addressed by This Evaporator Core

• Reduced or no air conditioning cooling performance
• Leaks or refrigerant loss in the evaporator core
• Unusual odors or moisture buildup inside the vehicle cabin
• HVAC system inefficiency due to clogged or damaged evaporator
• Replacement of worn or corroded evaporator cores in GM SUVs and trucks

Installation Notes and Tips

• Ensure compatibility with your vehicle model: Cadillac Escalade ESV, Chevrolet Suburban 1500/2500, GMC Yukon XL 1500/2500
• Handle the aluminum core carefully to avoid damage to fins
• Replace all O-rings included to maintain proper sealing and prevent leaks
• Follow manufacturer HVAC system evacuation and recharge procedures after installation
• Professional installation is recommended due to system complexity

Quality Assurance and Warranty Information

Four Seasons manufactures this evaporator core to meet or exceed OEM standards, using corrosion-resistant aluminum and precise fittings. The product includes all necessary sealing components to ensure a reliable fit. Warranty coverage details should be confirmed with the point of purchase or manufacturer, as it may vary by region.