Four Seasons 54803 A/C Evaporator Core

Four Seasons 54803 Evaporator Core Overview

Four Seasons 54803 is an A/C evaporator core for the HVAC system, built with an aluminum plate-and-fin design for the 1990-1991 Geo Storm. It uses block fittings at both the inlet and outlet for a direct-style service replacement in the evaporator circuit.

As part of the Four Seasons Evaporator Core line, this unit is focused on core dimensions and fitment accuracy for HVAC repair work. The Four Seasons 54803 evaporator core measures 9.250 inches wide, 8.750 inches high, and 3.500 inches deep, with aluminum construction and green O-ring sealing points specified for the connection interface.

Key Features

• Fits 1990-1991 Geo Storm, evaporator core position
• Four Seasons part number 54803
• Aluminum plate-and-fin construction
• Block fitting inlet and outlet connections
• Core dimensions: 9-1/4 in. wide, 8-3/4 in. high, 3-1/2 in. deep
• Uses [24608] green O-ring sealing specification

Detailed Product Description

This Four Seasons evaporator core is built for HVAC service on the Geo Storm and is sized to match the listed core dimensions for the application. The aluminum plate-and-fin design supports efficient refrigerant heat transfer inside the air conditioning system, while the block fitting configuration matches the connection style used on the confirmed fitment.

For buyers searching for a Geo Storm A/C evaporator core, Four Seasons 54803 provides a direct reference point by part number and vehicle fitment. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What This Part Helps Address

• Loss of cabin cooling performance from a leaking or restricted evaporator core
• Refrigerant odor or moisture-related HVAC issues tied to core failure
• Reduced A/C output in a 1990-1991 Geo Storm
• Service replacement needs for a damaged aluminum evaporator assembly
• Fitment matching for a block-fitting evaporator core replacement

Installation Notes and Tips

Verify the vehicle is a 1990-1991 Geo Storm before ordering Four Seasons 54803. Confirm the inlet and outlet fitting style, core dimensions, and O-ring sealing points against the original unit before installation. HVAC service should include proper evacuation and recharge procedures after the system is opened.

Quality Assurance

Four Seasons supplies HVAC components with application-specific sizing and connection details, and this evaporator core is listed with exact dimensional and fitting information to support accurate replacement selection.