Four Seasons 54939 A/C Evaporator Core - Front

Overview of Four Seasons Evaporator Core 54939

The Four Seasons Evaporator Core 54939 is designed to restore efficient cooling performance in your vehicle's HVAC system. Engineered for select Buick, Chevrolet, Oldsmobile, Pontiac, and Saturn models, this aluminum evaporator core ensures reliable operation and proper fitment.

• Dimensions: 9.735 inches width, 10.750 inches height, 2.3125 inches depth
• Core type: Plate & fin design for effective heat exchange
• Material: Durable aluminum construction
• Inlet and outlet fittings: Block fitting type for secure connections
• Includes slimline washer O-rings (part numbers 24402 and 24404) for sealing

Detailed Product Description

This Four Seasons Evaporator Core 54939 features a plate and fin core design that maximizes surface area for efficient refrigerant evaporation and heat absorption. The aluminum material provides corrosion resistance and durability under typical HVAC operating conditions. With precise dimensions—9.735 inches wide, 10.750 inches high, and 2.3125 inches deep—this evaporator core is engineered to fit specific vehicle models including the Buick Rendezvous, Chevrolet Uplander, Pontiac Montana, Saturn Relay, and others.

The inlet and outlet block fittings ensure a secure and leak-free connection to the vehicle’s A/C system. Included slimline washer O-rings (one each of part numbers 24402 and 24404) help maintain a tight seal, preventing refrigerant loss and maintaining system pressure.

About the Four Seasons Evaporator Core Product Line

The Four Seasons Evaporator Core line focuses on delivering reliable replacement evaporator cores that meet OEM specifications. This product line emphasizes precise fitment and durable materials, such as aluminum, to ensure consistent HVAC performance. The 54939 part number is part of this line, designed specifically for select GM vehicles to maintain proper cooling efficiency and system integrity.

Common Applications and Issues Addressed

• Restores cooling efficiency in Buick Rendezvous and Chevrolet Uplander A/C systems
• Replaces leaking or clogged evaporator cores in Pontiac Montana and Saturn Relay models
• Solves issues related to reduced airflow or insufficient cabin cooling
• Addresses refrigerant leaks caused by damaged evaporator cores
• Prevents system contamination from corroded or deteriorated core materials

Installation Notes and Tips

• Ensure compatibility with your specific vehicle make and model before installation
• Handle the evaporator core carefully to avoid damage to the aluminum fins
• Replace O-rings with the included slimline washers to maintain proper sealing
• Flush the A/C system to remove debris before installing the new evaporator core
• Follow manufacturer torque specifications for inlet and outlet fittings

Quality Assurance and Warranty

Four Seasons manufactures the Evaporator Core 54939 to meet industry standards for durability and performance. The aluminum construction and plate & fin design contribute to long service life. This part includes O-rings to ensure proper sealing and system integrity. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.