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Four Seasons 54734 A/C Evaporator Core - Front
| Brand | Four Seasons 54734 |
|---|---|
| Position | Front |
| Core Depth Fraction | 3-9/16 |
| Core Depth MM | 90.487 |
| Core Height Fraction | 8-7/16 |
| Core Height MM | 214.313 |
| Core Width Fraction | 10-7/8 |
| Core Width MM | 279.400 |
| Depth | 3.563 |
| Depth | 4.000 |
| Description | Evaporator Cores |
| Height | 8.250 |
| Height | 8.4375 |
| Inlet Fitting Outside Diameter | No. 8 |
| Inlet Fitting Type | Female O-Ring |
| Material | Aluminum |
| O-Ring A Number/Desc | [24661] / Green O-Ring |
| O-Ring B Number/Desc | [24681] / Green O-Ring |
| Outlet Fitting Outside Diameter | No. 10 |
| Outlet Fitting Type | Female O-Ring |
| Type | Serpentine |
| Width | 10.875 |
| Width | 11.000 |
| Product line | Evaporator Core |
| Fits | Toyota · 6 vehicles |
Aluminum construction. Helps resist corrosion while keeping the evaporator core lightweight.
Serpentine design. Promotes efficient refrigerant flow through the core.
Female O-ring fittings. Provide secure, leak-resistant connections at both ends.
Cross-references Dynomax 54734, Global Parts Distributors LLC 4711508 and Remy 97127 for the same application. See all 26.
Four Seasons 54734 Evaporator Core
Four Seasons 54734 is an aluminum A/C evaporator core for front HVAC service on select Toyota Sienna models. It is built as a serpentine-style evaporator core with female O-ring inlet and outlet fittings for a direct replacement approach in the air conditioning system.
Key Features
- Brand: Four Seasons Evaporator Core line
- Part number: 54734
- Aluminum construction for HVAC service
- Serpentine core design
- Female O-ring inlet and outlet fittings
- Core width: 10-7/8 in. (279.400 mm)
- Core height: 8-7/16 in. (214.313 mm)
- Core depth: 3-9/16 in. (90.487 mm)
- Front position application
Product Details
This Four Seasons evaporator core is part of the Evaporator Core product line and is specified for 1998-2000 Toyota Sienna front HVAC applications. The aluminum core uses No. 8 female O-ring inlet and No. 10 female O-ring outlet connections, along with green O-ring references listed for the sealing points. For buyers searching for a Toyota Sienna evaporator core, Four Seasons 54734 provides the dimensions and fitting style needed to match the original HVAC layout.
This part cross-references Spectra Premium 1010040 and UAC EV4798751PFC for the same application.
Common HVAC Problems This Part Addresses
- Loss of cabin cooling from a leaking evaporator core
- Restricted refrigerant flow through a damaged internal core
- Moisture-related HVAC performance issues caused by a failed evaporator
- Odors or residue from corrosion inside the evaporator housing
- Front A/C service needs on Toyota Sienna models
Installation Notes and Tips
Verify the core width, height, and depth against the removed unit before installation. Confirm the inlet and outlet fitting types and O-ring sealing surfaces are clean and undamaged before assembly. Proper evacuation, leak checking, and refrigerant recharge procedures should be followed after replacement. Fits 1998-2000 Toyota Sienna, front.
Quality Assurance
Four Seasons supplies HVAC replacement components with application-specific dimensions and fitting details to support accurate service work. Part number 54734 is listed with OE-style fitment references for the 1998-2000 Toyota Sienna front evaporator core application.
| Year | Make | Model | # Doors | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2000 | Toyota | Sienna | 4 Door | 3.0L | V6 | Front | Evaporator Core |
| 2000 | Toyota | Sienna | 5 Door | 3.0L | V6 | Front | Evaporator Core |
| 1999 | Toyota | Sienna | 4 Door | 3.0L | V6 | Front | Evaporator Core |
| 1999 | Toyota | Sienna | 5 Door | 3.0L | V6 | Front | Evaporator Core |
| 1998 | Toyota | Sienna | 4 Door | 3.0L | V6 | Front | Evaporator Core |
| 1998 | Toyota | Sienna | 5 Door | 3.0L | V6 | Front | Evaporator Core |
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