Four Seasons 54618 A/C Evaporator Core
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Four Seasons
 Evaporator Core

Four Seasons 54618 A/C Evaporator Core

Brand Four Seasons 54618
Core Depth Fraction 2-7/8
Core Depth MM 73.025
Core Height Fraction 8
Core Height MM 203.200
Core Width Fraction 11-1/16
Core Width MM 280.988
Depth 2.875
Description Evaporator Cores
Height 8.000
Inlet Fitting Type Block Fitting
Material Aluminum
O-Ring A Number/Desc [24402] / Slimline Washer
O-Ring B Number/Desc [24404] / Slimline Washer
Outlet Fitting Type Block Fitting
Type Plate & Fin
Width 11.0625
Width 11.125
Product line Evaporator Core
Fits Chevrolet and Pontiac · 10 vehicles

Plate and fin design. Promotes efficient heat transfer in the evaporator core.

Aluminum construction. Lightweight material helps support reliable cooling performance.

Block fittings. Uses block-style inlet and outlet connections for a clean install.

Cross-references Four Seasons 54618, Global Parts Distributors LLC 4711439 and UAC EV6947PFXC for the same application. See all 23.

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Four Seasons 54618 A/C Evaporator Core

The Four Seasons 54618 evaporator core is a plate-and-fin aluminum replacement for the HVAC system in select Chevrolet Camaro and Pontiac Firebird models. Built with block inlet and outlet fittings, it is sized for the specified applications and supports efficient cabin cooling performance.

Key Features

  • Brand: Four Seasons Evaporator Core
  • Part number: 54618
  • Plate & fin A/C evaporator core construction
  • Aluminum core material
  • Block fitting inlet and outlet design
  • Core dimensions: 11-1/16 in. width, 8 in. height, 2-7/8 in. depth
  • Includes OE-style slimline washer O-ring references for the listed fittings

Product Details

Four Seasons 54618 is an A/C evaporator core designed for HVAC service in 1998-2002 Chevrolet Camaro and 1998-2002 Pontiac Firebird applications. The aluminum plate-and-fin design helps transfer heat through the evaporator section of the air conditioning system, while the block fitting layout matches the listed vehicle configurations. This part cross-references UAC EV6947PFXC for the same application.

Use Four Seasons 54618 when replacing a leaking, restricted, or damaged evaporator core in a Camaro or Firebird HVAC system. The listed dimensions and fitting style help support proper fitment during repair work on these vehicles.

What This Part Helps Address

  • Loss of cold air from a leaking evaporator core
  • Reduced A/C performance caused by internal blockage
  • Refrigerant odor or residue from core failure
  • HVAC service needs after corrosion or age-related wear
  • Cabin cooling issues in the dash-mounted evaporator assembly

Installation Notes and Tips

Fits 1998-2002 Chevrolet Camaro, N/A. Fits 1998-2002 Pontiac Firebird, N/A. Confirm the block fitting style, core dimensions, and O-ring sealing surfaces before installation. Proper evacuation, leak checking, and system recharge are required after evaporator replacement. Because this component is installed within the HVAC case, access typically requires dash or heater box disassembly.

Quality Assurance

Four Seasons supplies HVAC replacement components for automotive air conditioning service, and this evaporator core is built to the listed dimensions and material specifications for the stated applications.

Related reading

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2002ChevroletCamaroN/APlate fin A/C evaporator core.; Evaporator Core
2002PontiacFirebirdN/APlate fin A/C evaporator core.; Evaporator Core
2001ChevroletCamaroN/APlate fin A/C evaporator core.; Evaporator Core
2001PontiacFirebirdN/APlate fin A/C evaporator core.; Evaporator Core
2000ChevroletCamaroN/APlate fin A/C evaporator core.; Evaporator Core
2000PontiacFirebirdN/APlate fin A/C evaporator core.; Evaporator Core
1999ChevroletCamaroN/APlate fin A/C evaporator core.; Evaporator Core
1999PontiacFirebirdN/APlate fin A/C evaporator core.; Evaporator Core
1998ChevroletCamaroN/APlate fin A/C evaporator core.; Evaporator Core
1998PontiacFirebirdN/APlate fin A/C evaporator core.; Evaporator Core
Directly replaces or cross-references 23 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 54618Global Parts Distributors LLC — 4711439UAC — EV6947PFXCWAI — 6647N97180156947288377590089706947770177105461801494922273334137701771115461852477813A88377CWK770177EP1110EP20094EV6947EV6947PFCT54618