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Four Seasons 54998 A/C Evaporator Core
Overview of Four Seasons Evaporator Core 54998
The Four Seasons Evaporator Core 54998 is designed specifically for Lexus RX330, RX350, and RX400h models. This A/C evaporator core ensures efficient cooling performance by effectively absorbing heat from the vehicle's cabin air.
- Compatible with Lexus RX330, RX350, RX400h
- Part Number: 54998
- Dimensions: 11.625" width x 10.875" height x 1.5" depth
- Plate & fin type aluminum construction
- Block fitting inlet and outlet for secure connections
- Includes two green O-rings (part numbers 24661 and 24681)
Detailed Product Features and Specifications
This Four Seasons Evaporator Core 54998 features a plate and fin design constructed from durable aluminum, providing reliable heat exchange and corrosion resistance. The core measures 11-5/8 inches in width, 10-7/8 inches in height, and has a depth of 1-1/2 inches (38.1 mm). Both the inlet and outlet fittings use block fittings, ensuring a secure and leak-resistant connection within the HVAC system. The product includes two green O-rings (part numbers 24661 and 24681) to maintain a proper seal during installation.
About the Four Seasons Evaporator Core Product Line
The Evaporator Core line by Four Seasons focuses on delivering precise fit and function for vehicle HVAC systems. This product line is engineered to meet OEM specifications, providing consistent performance and durability. The 54998 evaporator core is part of this line, designed to restore the air conditioning efficiency in compatible Lexus RX models by replacing worn or damaged evaporator cores.
Common Applications and Problem Resolution
- Restores cooling efficiency in Lexus RX330, RX350, RX400h A/C systems
- Replaces leaking or clogged evaporator cores
- Eliminates musty odors caused by evaporator core contamination
- Prevents refrigerant leaks due to damaged core or seals
- Improves overall HVAC system performance and cabin comfort
Installation Notes and Tips
Installation of the Four Seasons Evaporator Core 54998 requires disassembly of the vehicle’s HVAC housing. Ensure all refrigerant is properly evacuated before removal. Use the included green O-rings (24661 and 24681) to maintain a secure seal on inlet and outlet fittings. Verify the block fitting connections are tight to prevent leaks. It is recommended to inspect and replace the cabin air filter during installation for optimal system performance.
Quality Assurance and Warranty
Four Seasons products are manufactured to meet or exceed OEM standards. The Evaporator Core 54998 undergoes rigorous quality control to ensure durability and reliable operation. This part is backed by Four Seasons’ limited warranty, covering defects in material and workmanship under normal use conditions.
| Brand | Four Seasons |
| Part Number | 54998 |
| Position | Evaporator Core |
| Core Depth Fraction | 1-1/2 |
| Core Depth MM | 38.100 |
| Core Height Fraction | 10-7/8 |
| Core Height MM | 276.225 |
| Core Width Fraction | 11-5/8 |
| Core Width MM | 295.275 |
| Depth | 1.500 |
| Description | Evaporator Cores |
| Height | 10.875 |
| Inlet Fitting Type | Block Fitting |
| Material | Aluminum |
| O-Ring A Number/Desc | [24661] / Green O-Ring |
| O-Ring B Number/Desc | [24681] / Green O-Ring |
| Outlet Fitting Type | Block Fitting |
| Type | Plate & Fin |
| Width | 11.625 |
This part fits 9 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Lexus | RX350 | N/A | Plate Fin; Evaporator replacement for this application may require considerable time, specialty tools, and training.; Evaporator Core |
| 2008 | Lexus | RX350 | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2008 | Lexus | RX400h | N/A | Plate Fin; Evaporator replacement for this application may require considerable time, specialty tools, and training.; Evaporator Core |
| 2007 | Lexus | RX350 | N/A | Plate Fin; Evaporator replacement for this application may require considerable time, specialty tools, and training.; Evaporator Core |
| 2007 | Lexus | RX400h | N/A | Plate Fin; Evaporator replacement for this application may require considerable time, specialty tools, and training.; Evaporator Core |
| 2006 | Lexus | RX330 | N/A | Plate Fin; Evaporator replacement for this application may require considerable time, specialty tools, and training.; Evaporator Core |
| 2006 | Lexus | RX400h | N/A | Plate Fin; Evaporator replacement for this application may require considerable time, specialty tools, and training.; Evaporator Core |
| 2005 | Lexus | RX330 | N/A | Plate Fin; Evaporator replacement for this application may require considerable time, specialty tools, and training.; Evaporator Core |
| 2004 | Lexus | RX330 | N/A | Plate Fin; Evaporator replacement for this application may require considerable time, specialty tools, and training.; Evaporator 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.