Four Seasons 54277 A/C Evaporator Core

Overview of Four Seasons Evaporator Core 54277

The Four Seasons Evaporator Core 54277 is designed to restore efficient air conditioning performance in select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. This A/C evaporator core is engineered to meet the specific dimensions and fitting requirements of models such as the Bonneville, Cutlass, El Camino, Grand Am, Malibu, and Monte Carlo.

• Core dimensions: 7.75 inches width, 10 inches height, 3.625 inches depth
• Plate & fin construction for effective heat exchange
• Aluminum material for durability and corrosion resistance
• Male insert o-ring inlet and outlet fittings with No. 12 outside diameter
• Includes green o-rings [24608] and [24612], plus orifice tube [38623]

Four Seasons Evaporator Core Product Line Details

The Four Seasons Evaporator Core product line focuses on delivering reliable HVAC components that match original equipment specifications. The 54277 part number represents a precise replacement evaporator core designed to fit specific GM models, ensuring proper fitment and optimal cooling performance. This line emphasizes quality materials and exact dimensions to maintain system integrity and longevity.

Technical Description and Specifications

This A/C evaporator core features a plate and fin design constructed from aluminum, providing efficient heat transfer and resistance to corrosion. The core measures 7.75 inches wide, 10 inches high, and 3.625 inches deep (92.075 mm depth, 254 mm height, 196.85 mm width). Both the inlet and outlet fittings are male insert o-ring types with a No. 12 outside diameter, ensuring secure connections within the HVAC system. Included are green o-rings [24608] and [24612] for sealing, along with an orifice tube [38623] to regulate refrigerant flow.

Compatible Vehicles and Common Applications

• Buick models: Regal, LeMans, and others
• Chevrolet models: Malibu, Monte Carlo, El Camino
• Oldsmobile models: Cutlass, Cutlass Cruiser, Cutlass Salon, Cutlass Supreme
• Pontiac models: Bonneville, Grand Am, Grand LeMans, Grand Prix

This evaporator core is suitable for restoring A/C system functionality in these vehicles, addressing issues related to cooling inefficiency and refrigerant leaks.

Common Issues Addressed by This Evaporator Core

• Reduced air conditioning cooling performance
• Refrigerant leaks within the evaporator core
• Clogged or damaged evaporator fins causing airflow restriction
• Corrosion or deterioration of the original evaporator core
• Unusual odors or moisture buildup inside the HVAC system

Installation Notes and Tips

Installation of the Four Seasons Evaporator Core 54277 requires careful handling to avoid damage to the aluminum fins and fittings. Ensure all old refrigerant is properly evacuated before removal. Replace all associated o-rings with the included green o-rings to maintain a proper seal. Verify that the male insert o-ring fittings align correctly with the vehicle’s HVAC lines. It is recommended to inspect the orifice tube and replace it if necessary to ensure optimal refrigerant flow.

Quality Assurance and Warranty

Four Seasons manufactures this evaporator core to meet or exceed OEM standards, using durable aluminum construction and precise dimensions for reliable performance. The product includes necessary sealing components to ensure leak-free operation. Warranty coverage details should be confirmed with the product documentation or supplier, as Four Seasons typically offers limited warranties on their HVAC components.