Four Seasons 90490 HVAC Heater Core - Front

Reliable Heater Core Replacement for Chevrolet Astro and GMC Safari

The Four Seasons Heater Core 90490 is designed to restore efficient heating performance in your Chevrolet Astro or GMC Safari. Crafted from durable aluminum, this heater core ensures consistent heat transfer and long-lasting operation.

• Core dimensions: 7 inches length, 7 inches width, 1 inch thickness
• Constructed from corrosion-resistant aluminum material
• Core depth and height both measure 7 inches for precise fitment
• Tube diameter: 0.75 inches (19.05 mm) for both inlet and outlet tubes
• Meets or exceeds OEM specifications for reliable performance
• Non-adjustable pipe positioning for direct replacement

About the Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on providing high-quality HVAC heater cores engineered to meet or exceed original equipment manufacturer standards. The 90490 model is part of this line, offering a robust aluminum core designed for efficient heat exchange and durability in automotive heating systems.

Product Details and Specifications

This HVAC heater core features a compact 7x7 inch core size with a 1-inch thickness, making it suitable for the heating system requirements of Chevrolet Astro and GMC Safari models. The aluminum core material offers resistance to corrosion and enhances heat transfer efficiency. Both inlet and outlet tubes have a diameter of 0.75 inches (19.05 mm), ensuring compatibility with the vehicle’s existing heater hoses. The pipe positioning is fixed, providing a straightforward replacement without the need for adjustments.

Common Applications and Issues Addressed

• Restores heating system functionality in Chevrolet Astro and GMC Safari vehicles
• Resolves heater core leaks causing coolant loss or interior fogging
• Eliminates insufficient cabin heat due to clogged or damaged cores
• Prevents engine overheating related to heater core malfunctions
• Replaces corroded or deteriorated aluminum cores for improved durability

Installation Notes and Tips

When installing the Four Seasons Heater Core 90490, ensure the vehicle’s cooling system is properly drained before removal. The fixed pipe positioning requires alignment with existing heater hoses for a secure fit. Inspect all hose connections and clamps for wear and replace as necessary to prevent leaks. Follow manufacturer guidelines for coolant refilling and system bleeding to avoid air pockets.

Quality Assurance and Warranty

The Four Seasons Heater Core 90490 meets or exceeds OEM standards, providing reliable performance and durability. This part is manufactured with quality materials and precision engineering to ensure compatibility with Chevrolet Astro and GMC Safari models. Warranty details should be confirmed with the distributor or manufacturer.