Four Seasons 54883 A/C Evaporator Core - Rear
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Four Seasons
 Evaporator Core

Four Seasons 54883 A/C Evaporator Core - Rear

Brand Four Seasons 54883
Position Rear
Core Depth Fraction 2-5/16
Core Depth MM 58.737
Core Height Fraction 6-9/16
Core Height MM 166.6875
Core Width Fraction 9-3/4
Core Width MM 247.650
Depth 2.3125
Depth 2.375
Description Evaporator Cores
Height 6.5625
Height 7.000
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 Serpentine
Width 9.500
Width 9.750
Product line Evaporator Core
Fits Chevrolet, Pontiac, and Oldsmobile · 9 vehicles

Aluminum construction. Helps resist corrosion while keeping the evaporator core lightweight.

Serpentine design. Promotes efficient refrigerant flow through the core.

Block fittings. Uses block-style inlet and outlet connections for a straightforward replacement.

Cross-references Four Seasons 54883, Global Parts Distributors LLC 4711804 and Global Parts Distributors LLC 4711874 for the same application. See all 26.

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Rear A/C Evaporator Core for Pontiac Montana and Oldsmobile Silhouette

Four Seasons 54883 is a rear A/C evaporator core built for vehicles that need stable cabin cooling performance from the HVAC system. It uses an aluminum serpentine design with block inlet and outlet fittings for the specified rear applications.

The Four Seasons Evaporator Core line focuses on direct-fit HVAC service parts for air conditioning repair. This Four Seasons 54883 evaporator core matches the listed rear applications for Pontiac Montana and Oldsmobile Silhouette models.

Key Features

  • Aluminum evaporator core construction
  • Serpentine core design
  • Block fitting inlet and outlet connections
  • Core width: 9-3/4 in. (247.650 mm)
  • Core height: 6-9/16 in. (166.6875 mm)
  • Core depth: 2-5/16 in. (58.737 mm)
  • Includes OE-style slimline washer O-ring references for the listed connections

Detailed Description

Four Seasons 54883 is an A/C evaporator core for rear HVAC service on 2001-2005 Pontiac Montana, rear, and 2001-2004 Oldsmobile Silhouette, rear. The aluminum serpentine core is sized to the listed dimensions and uses block fittings to match the specified HVAC connection style. If you are replacing a leaking or restricted rear evaporator core, this part number provides a direct service option for those applications.

This part cross-references Spectra Premium 1054883 and TYC 97221 for the same application.

What It Helps Address

  • Rear cabin air that is not cooling properly
  • Refrigerant loss from a leaking evaporator core
  • HVAC performance issues caused by internal blockage
  • Uneven rear passenger comfort in Pontiac Montana and Oldsmobile Silhouette models
  • Service replacement needs for rear A/C repair

Installation Notes and Tips

Verify the rear HVAC layout, fitting style, and core dimensions before installation. Replace the system O-rings at the connections and inspect the surrounding HVAC components for contamination or damage before reassembly. Proper evacuation and recharge procedures are required after evaporator replacement.

Quality Assurance

Four Seasons 54883 is built as an HVAC service replacement part for the listed rear applications and is supported by the Four Seasons evaporator core product line.

Related reading

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2005PontiacMontanaRearEvaporator Core
2004OldsmobileSilhouetteRearEvaporator Core
2004PontiacMontanaRearEvaporator Core
2003OldsmobileSilhouetteRearEvaporator Core
2003PontiacMontanaRearEvaporator Core
2002OldsmobileSilhouetteRearEvaporator Core
2002PontiacMontanaRearEvaporator Core
2001OldsmobileSilhouetteRearEvaporator Core
2001PontiacMontanaRearEvaporator Core
Directly replaces or cross-references 26 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 54883Global Parts Distributors LLC — 4711804Global Parts Distributors LLC — 4711874Spectra Premium — 1054883TYC — 97221UAC — EV939705PFC6509N288442290233706936706953770193014760821562891273374737701931030678210323437104301651115488329939705PFA88442ACD1562891CWK770193ES01240T54883