HomeHVAC > A/C Condenser and EvaporatorFour Seasons 54784 A/C Evaporator Core
Part #: 54784

Four Seasons 54784 A/C Evaporator Core

Evaporator Core
5 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$85.02Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Evaporator Core
Fitment: Mazda, 626
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Evaporator Core 54784

The Four Seasons Evaporator Core 54784 is designed specifically for the Mazda 626, providing reliable HVAC performance. This A/C evaporator core is engineered to meet the exact dimensions and specifications required for efficient cooling in your vehicle's air conditioning system.

  • Compatible with Mazda 626 models
  • Core dimensions: 9.25 inches width, 8.25 to 8.5 inches height, and 3.0 to 3.125 inches depth
  • Plate & fin type construction for effective heat exchange
  • Aluminum material for durability and corrosion resistance
  • Male insert o-ring inlet and outlet fittings with No. 10 outside diameter
  • Includes green O-rings [24608] and [24610] for secure sealing

Detailed Product Description

The Four Seasons Evaporator Core 54784 belongs to the Evaporator Core product line, which focuses on delivering precise fit and function for vehicle HVAC systems. This evaporator core features a plate and fin design constructed from aluminum, ensuring efficient heat transfer and long-lasting performance. The core measures approximately 9.25 inches in width, with height options ranging from 8.25 to 8.5 inches and a depth between 3.0 and 3.125 inches, matching the OEM specifications for the Mazda 626. Both the inlet and outlet fittings use male insert o-rings with a No. 10 outside diameter, providing a secure and leak-resistant connection. The included green O-rings ([24608] and [24610]) help maintain a tight seal within the HVAC system.

Common Applications and Issues Addressed

  • Restores proper cooling performance in Mazda 626 air conditioning systems
  • Replaces leaking or clogged evaporator cores
  • Eliminates musty odors caused by mold or debris buildup
  • Resolves insufficient cabin cooling due to evaporator failure
  • Prevents refrigerant leaks and maintains system pressure

Installation Notes and Tips

  • Ensure compatibility with Mazda 626 before installation
  • Inspect and replace O-rings to prevent leaks during reassembly
  • Handle the aluminum core carefully to avoid damage to fins
  • Flush the HVAC system to remove debris before installing the new evaporator core
  • Follow vehicle manufacturer guidelines for refrigerant handling and system evacuation

Quality Assurance and Warranty

Four Seasons manufactures the Evaporator Core 54784 to meet industry standards for durability and performance. The aluminum construction and precise fitment contribute to reliable operation within the Mazda 626 HVAC system. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number54784
PositionEvaporator Core
Core Depth Fraction3
Core Depth MM76.200
Core Height Fraction8-1/4
Core Height MM209.550
Core Width Fraction9-1/4
Core Width MM234.950
Depth3.000
Depth3.125
DescriptionEvaporator Cores
Height8.250
Height8.375
Height8.500
Inlet Fitting TypeMale Insert 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
TypePlate & Fin
Width9.250

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2002Mazda626N/ATo 4/02; Evaporator Core
2001Mazda626N/AEvaporator Core
2000Mazda626N/AEvaporator Core
1999Mazda626N/AEvaporator Core
1998Mazda626N/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:

0147613810547841115478415636221919132927333102884213773178471152954784590059656872035377317880566797116A88421CWK773178EP372361ES18200EV4798713PFCEV4798713PFXCGD7A61J10GD7A61J10AT54784

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