Four Seasons
Evaporator Core

Four Seasons 54751 A/C Evaporator Core - Front

Brand Four Seasons 54751
Position Front
Core Depth Fraction 4
Core Depth MM 101.600
Core Height Fraction 12-5/8
Core Height MM 320.675
Core Width Fraction 8-5/8
Core Width MM 219.075
Depth 4.000
Description Evaporator Cores
Height 12.625
Height 12.63
Inlet Fitting Outside Diameter No. 10
Inlet Fitting Type Block Fitting
Material Aluminum
O-Ring A Number/Desc [24610] / Green O-Ring
Outlet Fitting Outside Diameter No. 10
Outlet Fitting Type Block Fitting
Type Serpentine
Width 8.625
Product line Evaporator Core
Fits Toyota · 3 vehicles

Aluminum construction. Helps resist corrosion while keeping weight down.

Serpentine design. Promotes efficient refrigerant flow through the core.

Block fittings. Uses No. 10 inlet and outlet connections.

Cross-references AMS Automotive 6690, Four Seasons 54751 and 103047 for the same application. See all 29.

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Four Seasons 54751 Evaporator Core for Toyota Previa

The Four Seasons Evaporator Core 54751 is an aluminum A/C evaporator core built for front HVAC service on select Toyota Previa models. With a serpentine core design and block-style inlet and outlet fittings, it is specified for 1991-1993 Toyota Previa front evaporator core applications.

Key Features

  • Brand: Four Seasons Evaporator Core
  • Part number: 54751
  • Aluminum construction for HVAC service applications
  • Serpentine core design
  • Block fitting inlet and outlet connections
  • Inlet and outlet fitting outside diameter: No. 10
  • Core width: 8-5/8 in. (219.075 mm)
  • Core height: 12-5/8 in. (320.675 mm)
  • Core depth: 4 in. (101.600 mm)
  • Uses Green O-Ring [24610] sealing style

Product Details

Four Seasons 54751 is an A/C evaporator core for the HVAC system, built around a serpentine aluminum core to support refrigerant heat exchange inside the vehicle cabin air conditioning system. The block fitting inlet and outlet layout, along with No. 10 fitting diameters, matches the specified front evaporator core configuration for Toyota Previa models from 1991 through 1993. This part number, 54751, is also referenced in aftermarket interchange listings for the same application.

This part cross-references AMS Automotive 6690 for the same application.

What It Is Used For

  • Restoring cabin cooling performance when the evaporator core is leaking
  • Replacing a restricted or internally corroded A/C evaporator core
  • Addressing weak airflow cooling caused by a failing HVAC heat-exchange core
  • Repairing refrigerant loss at the front evaporator assembly
  • Servicing a Toyota Previa front A/C evaporator core application

Installation Notes and Tips

Verify the core dimensions, block fitting style, and No. 10 inlet and outlet connections before installation. Confirm the vehicle is a 1991-1993 Toyota Previa, front evaporator core application, and inspect the sealing surfaces and O-ring condition during HVAC service. Proper evacuation, leak checking, and refrigerant recharge procedures should be followed after installation.

Quality Assurance

Four Seasons 54751 is built as an aluminum evaporator core for HVAC replacement service and is listed with OE-style interchange references for the specified Toyota Previa application. Confirm fitment against the vehicle’s original evaporator core specifications before installation.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1993ToyotaPreviaFrontEvaporator Core
1992ToyotaPreviaFrontEvaporator Core
1991ToyotaPreviaFrontEvaporator Core
Directly replaces or cross-references 29 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 6690Four Seasons — 5475110304715985023305324968528824459011573004677519180506701484928156316627201903775191471151347600568850195D03111547511919131089051808A98244CWK775191ES211231ES211232EV3513AEV3513ACT54751YE685