Four Seasons 54791 A/C Evaporator Core

Four Seasons 54791 Evaporator Core

Four Seasons 54791 is an aluminum plate-and-fin A/C evaporator core for select Ford, Mazda, and Mercury applications. It is built to match the listed inlet and outlet fitting styles and core dimensions for service replacement in the HVAC system.

Key Features

• Brand: Four Seasons Evaporator Core line
• Part number: 54791
• Aluminum plate-and-fin construction
• Core width: 10-9/16 in. (268.288 mm)
• Core height: 8-1/8 in. (206.375 mm)
• Core depth: 3-1/2 in. (88.900 mm)
• Inlet fitting: No. 8 female springlock
• Outlet fitting: No. 10 female O-ring
• O-ring references: [24668] green O-ring and [24610] green O-ring

Product Details

The Four Seasons Evaporator Core product line focuses on direct-fit HVAC service parts for air conditioning repair. This evaporator core uses a plate-and-fin aluminum design with the listed width, height, and depth dimensions to support proper fitment in the vehicle HVAC case. Four Seasons 54791 is listed for 1995-1997 Ford Explorer, 1996-1997 Ford F-100 Ranger, 1995-1997 Ford Ranger, 1995-1997 Mazda B2300, 1995-1997 Mazda B3000, 1995-1997 Mazda B4000, and 1997 Mercury Mountaineer. This part cross-references UAC EV0159PFXC and Spectra Premium 1054791 for the same application.

Common Repair Uses

• Restoring cabin cooling when the evaporator core is leaking
• Replacing a restricted or internally damaged A/C evaporator core
• Addressing poor air discharge temperature from the HVAC system
• Repairing refrigerant loss traced to the evaporator assembly
• Servicing a Ford Explorer, Ranger, or Mazda B-series A/C system with the correct fitting layout

Installation Notes

Verify the inlet and outlet fitting types, core dimensions, and vehicle application before installation. This evaporator core is listed for 1995-1997 Ford Explorer, 1996-1997 Ford F-100 Ranger, 1995-1997 Ford Ranger, 1995-1997 Mazda B2300, 1995-1997 Mazda B3000, 1995-1997 Mazda B4000, and 1997 Mercury Mountaineer. Replace the specified O-rings during service and confirm the HVAC case and line connections are clean before assembly. For best results, evacuate and recharge the A/C system according to the vehicle service procedure after installation.

Quality Assurance

Four Seasons supplies HVAC service parts with application-specific dimensions and fitting styles to support accurate replacement selection. Part number 54791 is cataloged with defined core measurements, aluminum construction, and listed interchange references for identification.