Four Seasons 92118 HVAC Heater Core

Four Seasons 92118 Heater Core for Lexus

Four Seasons 92118 is an aluminum HVAC heater core built for direct replacement service in select Lexus applications. It is sized at 10-5/8 inches long, 4 inches wide, and 1 inch thick, with tube openings measuring 0.4375 inch and 0.6875 inch.

Compatible With Lexus IS F, IS250, IS350, GS350, GS450h, GS460, GS430, and GS300 applications, this Four Seasons Heater Core line part is made to meet or exceed OEM requirements. The aluminum core construction supports efficient heat transfer in the vehicle’s heating system.

Key Features

• Part number: 92118
• Four Seasons Heater Core product line
• Aluminum heater core construction
• Core dimensions: 10-5/8 in. x 4 in. x 1 in.
• Tube sizes: 0.4375 in. and 0.6875 in.
• Meets or exceeds OEM specifications
• Direct-fit HVAC heater core for select Lexus models

Detailed Description

Four Seasons 92118 is an aluminum heater core for the HVAC system, engineered for select Lexus sedans and performance models. The compact core dimensions and fixed pipe positioning support replacement in vehicles that require the specified heater core layout. This part cross-references Dorman - HELP 91118 for the same application.

Compatible With 2008-2014 Lexus IS F, N/A; 2006-2013 Lexus IS250, N/A; 2006-2013 Lexus IS350, N/A; 2007-2011 Lexus GS350, N/A; 2007-2011 Lexus GS450h, N/A; 2008-2011 Lexus GS460, N/A; 2005-2007 Lexus GS430, N/A; and 2006 Lexus GS300, N/A. The Four Seasons 92118 heater core is a practical replacement when restoring cabin heat performance in these Lexus applications.

What It Helps Address

• Weak or inconsistent cabin heat
• Heater core leakage inside the HVAC system
• Restricted coolant flow through the heater core
• Loss of defrost performance caused by poor heater output
• Replacement needs during HVAC system repair on Lexus IS F, IS250, IS350, GS350, GS450h, GS460, GS430, and GS300 models

Installation Notes and Tips

Verify heater core dimensions, tube size, and pipe orientation before installation. Confirm vehicle fitment by model year and HVAC configuration, especially on Lexus IS F, IS250, IS350, and GS-series applications. Flush the cooling system and inspect hoses, clamps, and coolant condition before installing the replacement core.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM specifications, making it a specification-based replacement for factory-style HVAC service.