HomeHVAC > A/C Condenser and EvaporatorFour Seasons 54431 A/C Evaporator Core
Part #: 54431

Four Seasons 54431 A/C Evaporator Core

Evaporator Core
40 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Evaporator Core
Fitment: Chevrolet and GMC, C1500, C2500, C35, C3500, K1500, K2500, K3500, and C15
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Overview of Four Seasons Evaporator Core 54431

The Four Seasons Evaporator Core 54431 is designed to restore efficient air conditioning performance in Chevrolet and GMC trucks. Engineered with precise dimensions and durable aluminum construction, this A/C evaporator core is compatible with popular models such as the Chevrolet C1500 and GMC K2500.

  • Compatible with Chevrolet and GMC C15, C35, C1500, C2500, C3500, K1500, K2500, and K3500 models
  • Constructed from corrosion-resistant aluminum for durability
  • Core dimensions: 11.4375" width, 9.25" to 9.5" height, and 2.875" depth
  • Plate and fin design for effective heat exchange
  • Male insert o-ring inlet and outlet fittings with No. 12 outside diameter
  • Includes green o-rings [24608] and [24612], plus orifice tube [38623]

Four Seasons Evaporator Core Product Line Details

The Evaporator Core line by Four Seasons focuses on delivering reliable HVAC components that meet OEM specifications. This product line emphasizes precise fitment and material quality, ensuring consistent cooling performance and longevity. The 54431 evaporator core is part of this line, offering a direct replacement solution for specific Chevrolet and GMC truck models.

Detailed Product Description and Specifications

This A/C evaporator core features a plate and fin design constructed from aluminum, providing efficient heat transfer and resistance to corrosion. The core measures approximately 11-7/16 inches in width (290.512 mm), 9-1/4 to 9-1/2 inches in height (234.95 mm), and 2-7/8 inches in depth (73.025 mm). Both the inlet and outlet fittings utilize male insert o-rings with a No. 12 outside diameter, ensuring a secure and leak-free connection. Included with the core are green o-rings [24608] and [24612], as well as an orifice tube [38623], which are essential for proper installation and system integrity.

Common Applications and Issues Addressed

  • Restores cooling efficiency in Chevrolet C1500 and GMC K2500 A/C systems
  • Replaces leaking or clogged evaporator cores causing reduced airflow or unpleasant odors
  • Solves issues related to refrigerant leaks at the evaporator core
  • Addresses inconsistent cabin temperature control due to evaporator failure
  • Eliminates moisture buildup and potential mold growth inside the HVAC system

Installation Notes and Tips

  • Ensure compatibility with your specific Chevrolet or GMC truck model before installation
  • Replace all associated o-rings and the orifice tube included with the part number 54431 to prevent leaks
  • Handle the aluminum core carefully to avoid damage to the fins
  • Follow manufacturer torque specifications for inlet and outlet fittings
  • Flush the A/C system to remove contaminants before installing the new evaporator core

Quality Assurance and Warranty Information

Four Seasons manufactures the Evaporator Core 54431 to meet or exceed OEM standards, using high-quality aluminum and precise manufacturing processes. The product includes necessary sealing components to ensure a reliable fit and function. While specific warranty details are not provided here, Four Seasons typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number54431
PositionEvaporator Core
Core Depth Fraction2-7/8
Core Depth MM73.025
Core Height Fraction9-1/4
Core Height MM234.950
Core Width Fraction11-7/16
Core Width MM290.512
Depth2.875
DescriptionEvaporator Cores
Height9.250
Height9.500
Inlet Fitting TypeMale Insert O-Ring
MaterialAluminum
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 DiameterNo. 12
Outlet Fitting TypeMale Insert O-Ring
TypePlate & Fin
Width8.000
Width11.4375

This part fits 40 vehicles. Search below:

YearMakeModelPositionNotes
1990ChevroletC1500N/AEvaporator Core
1990ChevroletC2500N/AEvaporator Core
1990ChevroletC35N/AEvaporator Core
1990ChevroletC3500N/AEvaporator Core
1990ChevroletK1500N/AEvaporator Core
1990ChevroletK2500N/AEvaporator Core
1990ChevroletK3500N/AEvaporator Core
1990GMCC1500N/AEvaporator Core
1990GMCC2500N/AEvaporator Core
1990GMCC3500N/AEvaporator Core
1990GMCK1500N/AEvaporator Core
1990GMCK2500N/AEvaporator Core
1990GMCK3500N/AEvaporator Core
1989ChevroletC1500N/AEvaporator Core
1989ChevroletC2500N/AEvaporator Core
1989ChevroletC35N/AEvaporator Core
1989ChevroletC3500N/AEvaporator Core
1989ChevroletK1500N/AEvaporator Core
1989ChevroletK2500N/AEvaporator Core
1989ChevroletK3500N/AEvaporator Core
1989GMCC1500N/AEvaporator Core
1989GMCC2500N/AEvaporator Core
1989GMCC3500N/AEvaporator Core
1989GMCK1500N/AEvaporator Core
1989GMCK2500N/AEvaporator Core
1989GMCK3500N/AEvaporator Core
1988ChevroletC15N/AEvaporator Core
1988ChevroletC1500N/AEvaporator Core
1988ChevroletC2500N/AEvaporator Core
1988ChevroletC35N/AEvaporator Core
1988ChevroletC3500N/AEvaporator Core
1988ChevroletK1500N/AEvaporator Core
1988ChevroletK2500N/AEvaporator Core
1988ChevroletK3500N/AEvaporator Core
1988GMCC1500N/AEvaporator Core
1988GMCC2500N/AEvaporator Core
1988GMCC3500N/AEvaporator Core
1988GMCK1500N/AEvaporator Core
1988GMCK2500N/AEvaporator Core
1988GMCK3500N/AEvaporator Core

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

0148207005181210658111154431V156581156581X1610003236581249382249658127160273043928815130950643770122471133654431598581651765816581N706581715443172012377012297030A5676CWK770122E811025E811026EP1061EP20007EV6581EV6581PFCEV6581PFXCT54431YE6581

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.