Four Seasons 54474 A/C Evaporator Core

Reliable A/C Evaporator Core for Buick, Cadillac, Oldsmobile, and Pontiac

The Four Seasons Evaporator Core 54474 is designed to restore efficient cooling performance in select Buick, Cadillac, Oldsmobile, and Pontiac vehicles. Engineered with precision, this aluminum evaporator core ensures proper fit and function for models like the Buick LeSabre, Cadillac DeVille, and Pontiac Bonneville.

• Core dimensions: 13.5 inches width, 8 inches height, 2.875 inches depth
• Plate & fin construction for effective heat exchange
• Inlet fitting: male insert o-ring; outlet fitting: female o-ring with No. 12 outside diameter
• Includes green o-rings ([24608] and [24612]) and orifice tube ([38623]) for secure sealing
• Compatible with multiple GM models including Buick 60 Special, Cadillac Fleetwood, and Pontiac Delta 88

Four Seasons Evaporator Core Product Line Overview

The Four Seasons Evaporator Core line focuses on delivering durable and precise HVAC components for automotive air conditioning systems. This product line emphasizes quality aluminum construction and exact fitment to maintain factory cooling efficiency. The 54474 evaporator core is part of this line, offering reliable performance for classic GM vehicles requiring OEM-style replacement parts.

Product Details and Specifications

This A/C evaporator core features a plate and fin design constructed from aluminum, providing efficient heat transfer and corrosion resistance. The core measures 13.5 inches wide, 8 inches tall, and 2.875 inches deep (73.025 mm depth, 203.2 mm height, 342.9 mm width). It includes a male insert o-ring inlet fitting and a female o-ring outlet fitting sized at No. 12 outside diameter, ensuring compatibility with the vehicle’s HVAC system. The package contains green o-rings and an orifice tube to complete the installation and maintain system integrity.

Common Applications and Problem Resolution

• Restores cooling efficiency in Buick LeSabre and Pontiac Bonneville A/C systems
• Replaces leaking or clogged evaporator cores in Cadillac DeVille and Fleetwood models
• Solves issues related to insufficient cabin cooling and refrigerant leaks
• Addresses evaporator core corrosion and internal blockages
• Improves overall HVAC system performance in Oldsmobile 88 and Delta 88 vehicles

Installation Notes and Tips

Installation of the Four Seasons Evaporator Core 54474 requires careful handling to avoid damage to the aluminum core and fittings. Ensure all old refrigerant is properly evacuated before removal. Replace all included o-rings and the orifice tube to prevent leaks. Verify inlet and outlet fitting types match the vehicle’s HVAC lines. Professional installation is recommended for proper system evacuation and recharge.

Quality Assurance and Warranty

Four Seasons manufactures this evaporator core to meet or exceed OEM specifications, using corrosion-resistant aluminum and precision fittings. The product includes all necessary sealing components to ensure a leak-free installation. While specific warranty details are not provided here, Four Seasons typically offers limited warranties on their HVAC components to cover defects in materials and workmanship.