Four Seasons 54478 A/C Evaporator Core - Front

Reliable A/C Evaporator Core for Chevrolet and GMC Vehicles

The Four Seasons Evaporator Core 54478 is designed to restore efficient cooling performance in select Chevrolet and GMC trucks and SUVs. Engineered with durable aluminum and precise dimensions, this evaporator core ensures proper fit and function for your vehicle's HVAC system.

• Compatible with Chevrolet Blazer, C35, C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, and GMC K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, R3500, V3500, Yukon models
• Part number 54478 for accurate identification and fitment
• Constructed from corrosion-resistant aluminum material
• Plate and fin design for efficient heat exchange
• Male insert o-ring inlet and outlet fittings with green o-rings included
• Core dimensions approximately 11.44 inches wide, 9.25 inches high, and 2.88 inches deep

Four Seasons Evaporator Core Product Line Overview

The Evaporator Core line by Four Seasons focuses on delivering reliable HVAC components that meet OEM specifications. This product line emphasizes durable materials and precise engineering to maintain optimal air conditioning performance in a variety of vehicle applications. The 54478 evaporator core is part of this line, offering a direct replacement solution for Chevrolet and GMC trucks and SUVs requiring a plate and fin style core.

Product Details and Specifications

This A/C evaporator core features a plate and fin construction made from aluminum, providing effective heat transfer and resistance to corrosion. The core measures approximately 11-7/16 inches in width, 9-1/4 inches in height, and 2-7/8 inches in depth (290.5 mm x 235 mm x 73 mm). Both the inlet and outlet fittings use male insert o-rings with green o-rings (part numbers 24608 and 24612) included to ensure a secure, leak-free connection. The outlet fitting has a No. 12 outside diameter, matching OEM specifications for proper integration into the vehicle's HVAC system.

Common Applications and Issues Addressed

• Restores cooling efficiency in Chevrolet and GMC trucks and SUVs
• Replaces leaking or clogged evaporator cores causing reduced A/C performance
• Solves issues related to unpleasant odors from mold or debris buildup inside the evaporator
• Addresses HVAC system failures due to corrosion or physical damage of the evaporator core
• Improves cabin comfort by ensuring consistent air conditioning output

Installation Notes and Tips

Installation of the Four Seasons Evaporator Core 54478 requires removal of the vehicle’s HVAC housing. Ensure all refrigerant is properly evacuated before beginning work. Verify that the male insert o-ring fittings are clean and free of debris before installation. Replace the green o-rings included with the part to maintain a proper seal. Follow vehicle-specific service manual instructions for reassembly and refrigerant recharge to avoid leaks and ensure optimal system performance.

Quality Assurance and Warranty

Four Seasons manufactures the Evaporator Core 54478 to meet or exceed OEM standards, using corrosion-resistant aluminum and precise manufacturing processes. The product includes the necessary o-rings for installation and is designed for durability and reliable operation. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region.