Four Seasons 90056 HVAC Heater Core - Front

Reliable Heater Core Replacement for Chevrolet Astro and GMC Safari

The Four Seasons Heater Core part number 90056 is designed to restore efficient heating performance in your Chevrolet Astro or GMC Safari. Crafted from durable aluminum, this heater core meets or exceeds OEM standards to ensure reliable operation and long-lasting durability.

• Core dimensions: 8-1/4 inches length, 7 inches width, and 1 inch thickness
• Constructed from corrosion-resistant aluminum material
• Core depth and height precisely engineered at 1.000 inch and 8.250 inches respectively
• Tube sizes: 0.625 inch (15.875 mm) and 0.750 inch (19.050 mm) for proper coolant flow
• Designed specifically for Chevrolet Astro and GMC Safari models
• Meets or exceeds original equipment manufacturer (OEM) specifications

About the Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on providing high-quality HVAC components engineered for optimal heat transfer and durability. This aluminum heater core is part of that line, offering a corrosion-resistant design that supports efficient cabin heating and reliable performance in demanding conditions.

Product Details and Specifications

This HVAC heater core features an aluminum core material that provides excellent heat dissipation and resistance to corrosion. The core measures 8.25 inches in height, 7 inches in width, and 1 inch in thickness, ensuring a precise fit for the HVAC system in Chevrolet Astro and GMC Safari vehicles. The two tubes, sized at 0.625 inch and 0.750 inch, facilitate proper coolant circulation through the core. The fixed pipe positioning design maintains consistent installation alignment without adjustment.

Common Applications and Problem Resolution

• Restores heating functionality in Chevrolet Astro and GMC Safari HVAC systems
• Replaces leaking or clogged heater cores causing coolant loss
• Eliminates insufficient cabin heat due to core blockages or corrosion
• Prevents engine overheating related to heater core failures
• Addresses HVAC system odors caused by damaged heater cores

Installation Notes and Tips

When installing the Four Seasons Heater Core 90056, ensure the HVAC system is properly drained to avoid coolant spillage. Verify the core dimensions match the vehicle specifications for Chevrolet Astro and GMC Safari models. Handle the aluminum core carefully to prevent damage to the fins and tubes. Reconnect all hoses securely and check for leaks after installation.

Quality Assurance and Warranty

This heater core meets or exceeds OEM quality standards, providing dependable performance for your vehicle's heating system. Four Seasons products are manufactured under strict quality controls to ensure durability and fitment accuracy. Please refer to Four Seasons' warranty policy for specific coverage details.