HomeHVAC > A/C Condenser and EvaporatorFour Seasons 54666 A/C Evaporator Core
Part #: 54666

Four Seasons 54666 A/C Evaporator Core

Evaporator Core
⚙️ 3 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Evaporator Core
🚗Fitment: Nissan, 720
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Overview of Four Seasons Evaporator Core 54666

The Four Seasons Evaporator Core 54666 is designed specifically for Nissan 720 models, providing reliable HVAC performance. This A/C evaporator core is engineered to meet precise fitment requirements and restore efficient cooling in your vehicle's air conditioning system.

  • Compatible with Nissan 720 models
  • Core dimensions: 8.0" width x 8.5" height x 4.0" depth
  • Constructed from durable aluminum material
  • Inlet fitting: Female o-ring, No. 8 outside diameter
  • Outlet fitting: Male insert o-ring, No. 10 outside diameter
  • Includes green o-rings [24608] and [24610]
  • Serpentine type core design for efficient airflow

Detailed Product Description

The Four Seasons Evaporator Core 54666 belongs to the Evaporator Core product line, which focuses on delivering precise replacement parts for vehicle HVAC systems. This core features a serpentine design that optimizes refrigerant flow and heat exchange. Measuring 8 inches in width, 8.5 inches in height, and 4 inches in depth, it fits the Nissan 720's HVAC housing accurately. The aluminum construction ensures corrosion resistance and durability under typical operating conditions. The inlet and outlet fittings use female and male o-ring types respectively, with outside diameters of No. 8 and No. 10, ensuring a secure and leak-free connection. Included green o-rings [24608] and [24610] provide proper sealing during installation.

Common Applications and Issues Resolved

  • Restores cooling efficiency in Nissan 720 A/C systems
  • Replaces leaking or clogged evaporator cores
  • Eliminates musty odors caused by evaporator core contamination
  • Resolves insufficient cabin cooling due to evaporator failure
  • Prevents refrigerant leaks from damaged core fittings

Installation Notes and Tips

  • Ensure compatibility with Nissan 720 HVAC system before installation
  • Replace both inlet and outlet o-rings to prevent leaks
  • Handle the aluminum core carefully to avoid damage to fins
  • Flush the HVAC system to remove debris before installing new core
  • Follow vehicle manufacturer torque specifications for fittings

Quality Assurance and Warranty

Four Seasons manufactures the Evaporator Core 54666 to meet OEM standards for fit, form, and function. The aluminum construction and included sealing o-rings contribute to long-lasting performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.

BrandFour Seasons
Part Number54666
PositionEvaporator Core
Core Depth Fraction4
Core Depth MM101.600
Core Height Fraction8-1/2
Core Height MM215.900
Core Width Fraction8
Core Width MM203.200
Depth4.000
DescriptionEvaporator Cores
Height8.500
Inlet Fitting Outside DiameterNo. 8
Inlet Fitting TypeFemale O-Ring
MaterialAluminum
O-Ring A Number/Desc[24608] / Green O-Ring
O-Ring B Number/Desc[24610] / Green O-Ring
Outlet Fitting Outside DiameterNo. 10
Outlet Fitting TypeMale Insert O-Ring
TypeSerpentine
Width8.000

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
1985Nissan720N/AEvaporator Core
1984Nissan720N/AEvaporator Core
1983Nissan720N/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:

01484574111546661499061563588159906191912522320352494402498192728008W002728008W6028827037751715272052725546666718775171805978A98270CWK775171ES17221EV2725AEV2725ACT54666YE440YE819

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