Four Seasons 54597 A/C Evaporator Core

Four Seasons 54597 Evaporator Core

Four Seasons 54597 is an aluminum A/C evaporator core built in a plate-and-fin design for HVAC service on select Chevrolet, GMC, Oldsmobile, and Isuzu applications. It matches the listed core dimensions and uses male insert O-ring inlet and outlet fittings for a direct replacement approach.

Key Features

• Brand: Four Seasons Evaporator Core
• Part number: 54597
• Aluminum construction for HVAC service
• Plate & fin evaporator core design
• Core width: 13-7/16 in. (342.900 mm)
• Core height: 9-1/2 in. (241.300 mm)
• Core depth: 2-7/8 in. (73.025 mm)
• Male insert O-ring inlet and outlet fittings
• Outlet fitting outside diameter: No. 12
• Includes O-ring and orifice tube reference points listed in the product data

Product Details

Four Seasons 54597 is an A/C evaporator core for HVAC systems that need a replacement aluminum core with the specified width, height, and depth. The Four Seasons Evaporator Core line focuses on service parts for air conditioning repair, and this unit follows the listed fitment and fitting style for vehicles such as Chevrolet S10, Chevrolet Blazer, GMC Sonoma, GMC Jimmy, Oldsmobile Bravada, and Isuzu Hombre. If you are replacing a leaking or restricted evaporator core, part number 54597 provides the dimensional and connection details needed for a proper match.

This part cross-references Spectra Premium 1054597 and UAC EV6738PFXC for the same application.

What It Is Used For

• Replacing a leaking evaporator core in the A/C system
• Restoring cabin cooling performance on Chevrolet S10 and GMC Sonoma platforms
• Addressing restricted refrigerant flow through the HVAC evaporator
• Repairing corrosion-related HVAC core failure
• Servicing vehicles with male insert O-ring evaporator connections

Installation Notes

Fits 1995-2005 Chevrolet Blazer, N/A; 1994-2004 Chevrolet S10, N/A; 1994-2004 GMC Sonoma, N/A; 1995-1997 GMC Jimmy, N/A; 1998-2001 GMC Jimmy, N/A; 2002-2005 GMC Jimmy, N/A; 1996-2001 Oldsmobile Bravada, N/A; 1996-2000 Isuzu Hombre, N/A; and 1994 Chevrolet S10 Blazer, N/A. Extended labor, specialized tools, and HVAC expertise may be necessary for replacement on several of these applications. Verify core dimensions, fitting style, and vehicle-specific HVAC configuration before installation.

Quality Assurance

Four Seasons supplies HVAC service parts with application-specific dimensions and fitting details listed for accurate replacement selection. Part number 54597 is cataloged with aluminum construction, plate-and-fin design, and defined inlet and outlet connection types for consistent parts matching.