Four Seasons 92158 HVAC Heater Core

Heater Core for Hyundai and Kia Applications

Four Seasons Heater Core 92158 is an aluminum HVAC heater core built for direct replacement service in select Hyundai and Kia vehicles. It measures 8-1/8 inches long, 6-5/8 inches wide, and 1 inch thick, with 0.6875-inch tubes for a precise fit in the heater box.

This Four Seasons heater core line focuses on OE-style replacement coverage for heating system repair. Part number 92158 meets or exceeds OEM requirements and uses an aluminum core construction for dependable heat transfer in the cabin HVAC system.

Key Features

• Aluminum heater core construction
• Dimensions: 8-1/8 in. length, 6-5/8 in. width, 1 in. thickness
• Tube size: 0.6875 in. / 17.4625 mm
• Meets or exceeds OEM specifications
• Direct replacement HVAC heater core for select Hyundai Sonata, Hyundai XG350, Hyundai XG300, Kia Optima, and Kia Magentis applications
• Four Seasons 92158 heater core for repair-focused fitment

Detailed Description

Four Seasons 92158 is an aluminum HVAC heater core designed for vehicles that use a compact core layout and fixed pipe positioning. It is listed for 1999-2005 Hyundai Sonata, 2002-2005 Hyundai XG350, 2001 Hyundai XG300, 2001-2006 Kia Optima, and 2001-2005 Kia Magentis. This part cross-references Spectra Premium 99221 for the same application.

Use this heater core when restoring cabin heat output in a Hyundai Sonata or Kia Optima heating system, or when replacing a leaking or restricted core in related Hyundai and Kia models. The aluminum core material supports efficient heat exchange while maintaining the dimensions needed for proper HVAC case fitment.

What It Helps Fix

• Weak or uneven cabin heat
• Coolant odor inside the vehicle
• Coolant loss from a leaking heater core
• Restricted coolant flow through the HVAC core
• Fogging or dampness caused by heater core seepage

Installation Notes and Tips

Verify heater box dimensions, tube size, and pipe orientation before installation. This part uses non-adjustable pipe positioning, so matching the original layout is important for proper connection and sealing. Confirm vehicle application by year, make, and model before ordering, especially for Hyundai Sonata, Kia Optima, and Kia Magentis fitments.

Quality Assurance

Four Seasons 92158 is built as an OEM-level replacement heater core and is specified to meet or exceed OEM requirements for the listed applications. The aluminum construction and application-specific dimensions support consistent HVAC repair work on compatible Hyundai and Kia vehicles.