Four Seasons 54585 A/C Evaporator Core
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Four Seasons
 Evaporator Core

Four Seasons 54585 A/C Evaporator Core

Brand Four Seasons 54585
Core Depth Fraction 3-5/8
Core Depth MM 92.075
Core Height Fraction 11-3/8
Core Height MM 288.925
Core Width Fraction 10-1/2
Core Width MM 266.700
Depth 3.625
Description Evaporator Cores
Height 9.000
Height 11.375
Inlet Fitting Type Male Insert O-Ring
Material Aluminum
O-Ring A Number/Desc [24608] / Green O-Ring
O-Ring B Number/Desc [24612] / Green O-Ring
O-Ring C Number/Desc [38623] / Orifice Tube
Outlet Fitting Outside Diameter No. 12
Outlet Fitting Type Female O-Ring
Type Plate & Fin
Width 10.500
Product line Evaporator Core
Fits Cadillac · 4 vehicles

Aluminum construction. Lightweight material helps resist corrosion in HVAC service.

Plate and fin design. Promotes efficient heat transfer for consistent cooling performance.

Evaporator core. A direct replacement component for the A/C system.

Cross-references AMS Automotive 6661, Four Seasons 54585 and Four Seasons 56661 for the same application. See all 29.

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Four Seasons 54585 Evaporator Core

The Four Seasons 54585 evaporator core is a plate-and-fin A/C evaporator core built with an aluminum construction and OE-style fitting layout. It is a direct replacement option for select Cadillac applications, including 1990-1992 Cadillac Brougham and 1992 Cadillac Commercial Chassis.

Key Features

  • Four Seasons Evaporator Core line
  • Part number 54585
  • Aluminum plate-and-fin construction
  • Core width: 10-1/2 in. (266.700 mm)
  • Core height: 11-3/8 in. (288.925 mm)
  • Core depth: 3-5/8 in. (92.075 mm)
  • Male insert O-ring inlet fitting
  • Female O-ring outlet fitting
  • Outlet fitting outside diameter: No. 12

Product Details

Four Seasons 54585 is an A/C evaporator core for vehicles that use a plate-and-fin aluminum core with the listed inlet and outlet fitting configuration. The dimensions and connection style are important for proper HVAC service, especially when replacing a leaking or restricted evaporator in a Cadillac Brougham or Cadillac Commercial Chassis. This part cross-references Global Parts Distributors LLC 4711410 for the same application.

What It Is Used For

  • Replacing a leaking evaporator core in the HVAC system
  • Restoring cabin cooling performance when the core is restricted
  • Addressing refrigerant loss at the evaporator connections
  • Correcting poor A/C output caused by internal corrosion or blockage
  • Servicing select Cadillac Brougham and Cadillac Commercial Chassis models with the proper fitment

Installation Notes and Tips

Verify the core dimensions, inlet and outlet fitting types, and O-ring style before installation. Inspect the HVAC case, seals, and refrigerant lines for wear or contamination during service. Proper evacuation, leak checking, and system recharge procedures should be followed after replacement. Fits 1990-1992 Cadillac Brougham, N/A. Fits 1992 Cadillac Commercial Chassis, N/A.

Quality Assurance

Four Seasons supplies HVAC replacement components across a wide range of automotive applications, and this evaporator core is built to match the listed physical specifications and connection style for the confirmed fitment.

Related reading

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1992CadillacBrougham——N/AEvaporator Core
1992CadillacCommercial Chassis5.7LV8N/AEvaporator Core
1991CadillacBrougham——N/AEvaporator Core
1990CadillacBrougham——N/AEvaporator Core
Directly replaces or cross-references 29 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 6661Four Seasons — 54585Four Seasons — 56661Global Parts Distributors LLC — 4711410Marmon Ride Control — A56706661N106661156661156661X236661288155598661706661720186770173014769442496661273046137701731115458552453181ACD156661CWK770173EP1072EP20052EV6661EV6661PFT54585YE6661