Four Seasons 92126 HVAC Heater Core

Four Seasons 92126 Heater Core for Mazda CX-7

Four Seasons 92126 is an aluminum HVAC heater core built for direct replacement service in the 2007-2009 Mazda CX-7. It is sized to match the listed application and meets or exceeds OEM requirements for fit and function.

Key Features

• Aluminum heater core construction for HVAC heat transfer
• Core dimensions: 8 in. height, 6-1/4 in. width, 1-1/4 in. thickness
• Tube size: 0.625 in. / 15.875 mm on both connections
• Meets or exceeds OEM specifications
• Direct-fit HVAC heater core for the Mazda CX-7

Product Details

This Four Seasons Heater Core line part is engineered for the HVAC system and is identified by part number 92126. The aluminum core design supports efficient coolant-to-air heat exchange inside the heater case, helping restore cabin heat performance in the Mazda CX-7. This part cross-references Dorman - HELP 91126 for the same application.

Compatible With 2007-2009 Mazda CX-7, N/A. If you are replacing a leaking, restricted, or heat-reduced heater core, this part provides the correct dimensions and tube sizing for the listed vehicle application. Four Seasons 92126 is also referenced by interchange numbers 99337, 9010761, GR1N61A10, and MZGR1N61A10.

Common Issues This Part May Resolve

• Weak or inconsistent cabin heat
• Coolant odor inside the vehicle
• Coolant seepage from the HVAC heater core area
• Restricted coolant flow through the heater core
• Temperature imbalance between engine coolant and cabin heat output

Installation Notes and Tips

Verify the heater core dimensions, tube diameter, and vehicle application before installation. On the Mazda CX-7, access typically requires removal of HVAC components around the heater case, so compare the original core to Four Seasons 92126 before final assembly. Confirm hose routing and seal condition during reassembly to help prevent leaks.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM requirements. The aluminum construction and application-specific sizing support consistent replacement quality for 2007-2009 Mazda CX-7 HVAC service.