Four Seasons 92170 HVAC Heater Core

Four Seasons 92170 Heater Core for Toyota Corolla and Matrix

The Four Seasons Heater Core 92170 is an aluminum HVAC heater core built for direct replacement in select Toyota applications. It is engineered to meet or exceed OEM requirements and is sized for 2005-2008 Toyota Corolla and 2005-2008 Toyota Matrix heater core service.

Key Features

• Brand: Four Seasons Heater Core
• Part number: 92170
• Aluminum heater core construction
• Core dimensions: 8-1/2 in. length, 5-3/4 in. width, 1 in. thickness
• Core height: 8.500 in.; core width: 5.750 in.; core depth: 1.000 in.
• Tube size: 0.6875 in. / 17.4625 mm
• Meets or exceeds OEM specifications
• Compatible with 2005-2008 Toyota Corolla and 2005-2008 Toyota Matrix heater core applications

Product Details

Four Seasons 92170 is an aluminum heater core designed for HVAC repair where the original core has leaked, restricted flow, or lost heat transfer efficiency. The aluminum core material supports efficient heat exchange in the vehicle’s heating system, while the listed dimensions help confirm fitment before installation. This part cross-references Dorman - HELP (e.g., 91170, 92170) for the same application.

Fits 2005-2008 Toyota Corolla, N/A. Fits 2005-2008 Toyota Matrix, N/A. Use this heater core when servicing the HVAC system on Toyota Corolla and Toyota Matrix models within the listed years, including 2005 Toyota Corolla heater core replacement, 2008 Toyota Matrix heater core replacement, and similar applications across the confirmed range.

Common Repair Uses

• Restores cabin heat when the original heater core is clogged or restricted
• Addresses coolant leakage from a damaged heater core
• Helps correct uneven or weak heat output from the HVAC system
• Replaces a corroded or aging aluminum heater core
• Supports repair of Toyota Corolla and Matrix heater core failures in the confirmed model years

Installation Notes and Tips

Verify core dimensions, tube size, and vehicle fitment before installation. Because heater core replacement often requires HVAC case access, inspect related hoses, seals, and coolant condition during service. Confirm the part number 92170 against the original unit and vehicle application before assembly.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM specifications, making it a direct-fit replacement option for confirmed Toyota Corolla and Toyota Matrix applications.