Four Seasons
Evaporator Core

Four Seasons 54677 A/C Evaporator Core

Brand Four Seasons 54677
Core Depth Fraction 4
Core Depth MM 101.600
Core Height Fraction 10-7/8
Core Height MM 276.225
Core Width Fraction 8-5/8
Core Width MM 219.075
Depth 4.000
Description Evaporator Cores
Height 7.750
Height 10.875
Inlet Fitting Outside Diameter No. 8
Inlet Fitting Type Female O-Ring
Material Aluminum
O-Ring A Number/Desc [24608] / Green O-Ring
O-Ring B Number/Desc [24610] / Green O-Ring
Outlet Fitting Outside Diameter No. 10
Outlet Fitting Type Male Insert O-Ring
Type Serpentine
Width 8.625
Width 10.875
Product line Evaporator Core
Fits Honda · 4 vehicles

Aluminum construction. Helps transfer heat efficiently in the HVAC system.

Serpentine design. Promotes smooth refrigerant flow through the evaporator core.

O-ring fittings. Female inlet and male outlet connections simplify installation.

Cross-references AMS Automotive 6761, Bosch 6758 and Dorman - HELP 54003 for the same application. See all 43.

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Four Seasons 54677 Evaporator Core for Honda Accord

The Four Seasons 54677 evaporator core is an aluminum A/C evaporator core built for 1986-1989 Honda Accord applications. It uses a serpentine core design with OE-style inlet and outlet fitting configurations to support proper refrigerant flow and cabin cooling performance.

Key Features

  • Brand: Four Seasons Evaporator Core
  • Part number: 54677
  • Aluminum construction for HVAC service applications
  • Serpentine type core design
  • Core width: 8-5/8 in. (219.075 mm)
  • Core height: 10-7/8 in. (276.225 mm)
  • Core depth: 4 in. (101.600 mm)
  • Inlet fitting: No. 8 female O-ring
  • Outlet fitting: No. 10 male insert O-ring
  • Includes Green O-Ring references: [24608] and [24610]

Product Details

Four Seasons 54677 is an evaporator core for the HVAC system in 1986-1989 Honda Accord models. The aluminum core is sized at 8-5/8 inches wide, 10-7/8 inches high, and 4 inches deep, with No. 8 female O-ring inlet and No. 10 male insert O-ring outlet connections. This part cross-references Dorman - HELP 54003 and 54004 for the same application.

Common HVAC Issues This Part May Address

  • Reduced cabin cooling from a leaking or restricted evaporator core
  • Refrigerant loss at damaged inlet or outlet fittings
  • Uneven A/C performance caused by internal corrosion or blockage
  • HVAC service needs on aging 1986-1989 Honda Accord systems
  • Replacement of a worn serpentine evaporator core during A/C repair

Installation Notes and Tips

Verify core dimensions and fitting style before installation to confirm match-up with the vehicle HVAC case and refrigerant line connections. Inspect the O-ring sealing surfaces and replace worn seals during service to help maintain a proper seal. For best results, evacuate and recharge the A/C system according to factory service procedures after installation.

Quality Assurance

Four Seasons supplies HVAC service parts for automotive air conditioning repairs, and this evaporator core is built with aluminum construction and OE-style fitting details for the listed Honda Accord applications.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1989HondaAccordN/AEvaporator Core
1988HondaAccordN/AEvaporator Core
1987HondaAccordN/AEvaporator Core
1986HondaAccordN/AEvaporator Core
Directly replaces or cross-references 43 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 6761Bosch — 6758Dorman - HELP — 54003Dorman - HELP — 54004Dynomax — 54677Marmon Ride Control — A57022730080210SE0A1080210SE0A1180210SE0A11AH80210SEOA01104003104003D104003S149706149713159706159780232068249406288174294003A77513580596701484284156222015629402724003377513547114744711591111546771919126188919671CWK775135ES29200ES211190EV4003EV4003AEV4003ACEV4101ACT54677YE406