Four Seasons 91473 HVAC Heater Core

Reliable Heater Core Replacement for Mazda 626

The Four Seasons Heater Core 91473 is designed to restore efficient heating performance in your Mazda 626. Engineered with durable aluminum construction, this heater core meets or exceeds OEM specifications to ensure consistent warmth and comfort during colder months.

• Core dimensions: 6-1/8 inches length, 6-1/2 inches width, 1-3/4 inches thickness
• Constructed from corrosion-resistant aluminum material
• Core depth of 1.75 inches and height of 6.125 inches for precise fitment
• Standard 0.75 inch (19.05 mm) inlet and outlet tubes
• Meets or exceeds original equipment manufacturer (OEM) standards

Four Seasons Heater Core Product Line Overview

The Four Seasons Heater Core line focuses on delivering reliable HVAC components that maintain vehicle heating system integrity. This aluminum heater core is part of that line, offering a balance of durability and thermal efficiency tailored for specific vehicle applications like the Mazda 626. The design ensures proper heat transfer and long service life under typical operating conditions.

Product Details and Specifications

This HVAC heater core features an aluminum core material that provides resistance to corrosion and efficient heat conduction. The core measures 6.125 inches in height, 6.5 inches in width, and 1.75 inches in depth, making it compatible with the heating system of the Mazda 626. Both inlet and outlet tubes have a diameter of 0.75 inches (19.05 mm), matching OEM dimensions for straightforward integration. The part number 91473 identifies this specific heater core within the Four Seasons catalog, ensuring accurate replacement and fitment.

Common Issues Addressed by This Heater Core

• Insufficient cabin heat due to clogged or leaking heater core
• Coolant leaks inside the vehicle causing foggy windows or damp carpets
• Overheating engine symptoms related to heater core failure
• Unpleasant odors from coolant entering the HVAC system
• Reduced HVAC system efficiency impacting passenger comfort

Installation Notes and Tips

When replacing the heater core in a Mazda 626, ensure the cooling system is properly drained before removal. Verify that the inlet and outlet tubes align with the vehicle’s heater hoses to avoid leaks. Handle the aluminum core carefully to prevent damage to the fins and tubes. It is recommended to inspect and replace any worn seals or gaskets during installation to maintain system integrity.

Quality Assurance and Warranty

The Four Seasons Heater Core 91473 is manufactured to meet or exceed OEM standards, providing reliable performance and durability. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.