Four Seasons 92378 HVAC Heater Core

Four Seasons Heater Core 92378 Overview

Four Seasons Heater Core 92378 is a specific-fit HVAC heater core built with an aluminum core material and OE-style dimensions for direct replacement service. It is listed to meet or exceed OEM requirements and is sized for select Kia and Hyundai applications, including the Kia Cadenza, Kia Optima, and Hyundai Sonata.

The Four Seasons Heater Core line focuses on replacement components for heating and climate control systems. Part number 92378 follows that approach with a specific-fit design, aluminum construction, and tube sizing that matches the listed applications for a straightforward service repair.

Key Features

• Specific-fit HVAC heater core for select vehicle applications
• Aluminum core material for efficient heat transfer
• Core dimensions: 6-1/4 in. height, 9 in. width, 1 in. depth
• Tube size: 0.75 in. / 19.05 mm on both connections
• Meets or exceeds OEM requirements
• Four Seasons part number 92378

Vehicle Fitment

• Fits 2017-2020 Kia Cadenza, Heater Core
• Fits 2016-2020 Kia Optima, Heater Core
• Fits 2016-2019 Hyundai Sonata, Heater Core

Detailed Description

Four Seasons 92378 is an aluminum heater core for HVAC systems that require a specific-fit replacement. With a 6.25-inch core height, 9-inch core width, and 1-inch core depth, this heater core is built around the listed dimensions and tube sizing to support proper integration in the vehicle’s heating circuit. It cross-references Spectra Premium 98194 for the same application.

For buyers searching for a heater core for 2016-2020 Kia Optima, 2017-2020 Kia Cadenza, or 2016-2019 Hyundai Sonata, this part number provides a direct replacement option in the Four Seasons Heater Core line. The aluminum style and OE-matching fitment focus make it a practical choice for restoring cabin heat performance in the specified vehicles.

Common Problems This Part Can Address

• Weak or inconsistent cabin heat
• Restricted coolant flow through the heater core
• Internal heater core leakage
• Heat loss caused by a failing HVAC core
• Replacement needs during heater system repair

Installation Notes and Tips

Confirm the vehicle’s year, make, and model against the listed fitment before installation. Verify core dimensions and tube size against the removed part, and inspect related HVAC and cooling system components for contamination, leaks, or blockage before completing the repair. Proper coolant service and system bleeding are important after heater core replacement.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM requirements. Part number 92378 is built as a specific-fit replacement for the applications shown above, with aluminum construction and dimensions intended to match the original heater core layout.