Four Seasons 92350 HVAC Heater Core

Four Seasons 92350 Heater Core for Lexus IS300

The Four Seasons Heater Core 92350 is a specific-fit aluminum HVAC heater core for select 2001-2005 Lexus IS300 applications. Built to meet or exceed OEM requirements, it is sized for direct replacement in the vehicle’s heater system and supports consistent cabin heat output.

Key Features

• Specific-fit heater core for 2001-2005 Lexus IS300
• Aluminum core construction for HVAC heat transfer
• Dimensions: 4-1/2 in. height, 10-1/2 in. width, 1 in. depth
• Tube size: 0.6875 in. / 17.4625 mm
• Meets or exceeds OEM specifications
• Four Seasons Heater Core line, part number 92350

Product Details

Four Seasons 92350 is an aluminum heater core engineered for the Lexus IS300 heater box and related HVAC core replacement needs. The specific-fit design helps ensure proper alignment with the factory system, while the compact core dimensions and tube sizing match the listed application. This part cross-references APDI 9010457 for the same application.

Common Issues This Part May Address

• Weak or inconsistent heat from the HVAC system
• Coolant odor inside the cabin
• Interior fogging caused by heater core leakage
• Loss of heater performance in a 2001-2005 Lexus IS300
• Corrosion-related heater core failure

Installation Notes and Tips

Verify the vehicle’s year and model before ordering. Confirm tube orientation, core dimensions, and HVAC case fitment against the removed part to ensure proper installation. Because this is a specific-fit heater core for Lexus IS300 applications, matching the factory configuration is important for correct sealing and heat transfer.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM specifications, making it a direct replacement option for the factory HVAC system. Part number 92350 is intended for 2001-2005 Lexus IS300 heater core service.