Four Seasons 54903 A/C Evaporator Core

Overview of Four Seasons Evaporator Core 54903

The Four Seasons Evaporator Core 54903 is designed specifically for select Toyota and Scion models, including the Echo, xA, and xB. This A/C evaporator core ensures efficient cooling performance by effectively absorbing heat from the vehicle's cabin air.

• Compatible with Toyota Echo, xA, and xB, and Scion models
• Part number 54903 for precise identification
• Constructed from durable aluminum material
• Plate and fin design for optimal heat exchange
• Dimensions: 10.000 inches width, 8.750 inches height, 2.250 inches depth
• Block fitting inlet and outlet with No. 8 and No. 10 outside diameters respectively
• Includes two green O-rings ([24661] and [24681]) for secure sealing

Four Seasons Evaporator Core Product Line Details

The Four Seasons Evaporator Core product line focuses on delivering reliable HVAC components that meet OEM specifications. This line features plate and fin type evaporator cores made from aluminum, providing a balance of durability and efficient thermal conductivity. The 54903 model is part of this line, engineered to maintain proper airflow and cooling capacity in compatible Toyota and Scion vehicles.

Detailed Product Description and Specifications

The Four Seasons Evaporator Core 54903 measures 10 inches in width, 8.75 inches in height, and 2.25 inches in depth, with core dimensions precisely matching these measurements to ensure proper fitment. The plate and fin construction enhances heat transfer efficiency, while the aluminum material offers corrosion resistance and longevity. The inlet and outlet fittings use block fitting types with outside diameters of No. 8 and No. 10, respectively, facilitating secure connections within the vehicle's HVAC system. Included green O-rings ([24661] and [24681]) provide reliable sealing to prevent refrigerant leaks.

Common Applications and Issues Addressed

• Restores proper air conditioning cooling in Toyota Echo, xA, and xB, and Scion models
• Replaces leaking or clogged evaporator cores
• Eliminates musty odors caused by mold buildup in the evaporator
• Resolves reduced airflow or inconsistent cabin temperature
• Addresses refrigerant leaks within the evaporator core assembly

Installation Notes and Tips

Installation of the Four Seasons Evaporator Core 54903 requires disassembly of the vehicle’s HVAC housing. Ensure all refrigerant is properly recovered before removal. Verify the block fitting connections match the vehicle’s inlet and outlet lines. Replace the included green O-rings to maintain a secure, leak-free seal. It is recommended to inspect the entire A/C system for contamination or damage during replacement.

Quality Assurance and Warranty

Four Seasons manufactures the 54903 evaporator core to meet or exceed OEM standards, using corrosion-resistant aluminum and precision fittings. The product includes green O-rings for proper sealing and is designed for durability in automotive HVAC systems. Warranty coverage details should be confirmed with the product documentation or supplier.