Four Seasons 90489 HVAC Heater Core - Rear

Overview of Four Seasons Heater Core 90489

The Four Seasons Heater Core 90489 is designed specifically for Chevrolet Astro and GMC Safari models. This aluminum heater core provides reliable heating performance and meets or exceeds OEM standards, ensuring compatibility and durability for your vehicle's HVAC system.

• Core dimensions: 6-1/4 inches length, 6-1/8 inches width, 1 inch thickness
• Constructed from durable aluminum core material
• Core height: 6.25 inches; core width: 6.13 inches; core depth: 1 inch
• Tube diameter: 0.75 inches (19.05 mm) for both inlet and outlet tubes
• Non-adjustable pipe positioning for direct OEM replacement
• Meets or exceeds original equipment manufacturer specifications

Four Seasons Heater Core Product Line Details

The Four Seasons Heater Core product line focuses on delivering reliable HVAC heater cores engineered to match OEM specifications. The Heater Core line emphasizes quality materials such as aluminum for efficient heat transfer and corrosion resistance. Part number 90489 is part of this line, designed to provide consistent heating performance for Chevrolet Astro and GMC Safari vehicles.

Product Description and Specifications

This HVAC heater core features an aluminum core measuring 6-1/4 inches in length, 6-1/8 inches in width, and 1 inch in thickness, providing efficient heat exchange within the vehicle's heating system. The core height and width are 6.25 inches and 6.13 inches respectively, with a core depth of 1 inch. Both inlet and outlet tubes have a diameter of 0.75 inches (19.05 mm), ensuring proper coolant flow. The pipe positioning is fixed, matching the original equipment layout for straightforward installation. This heater core is engineered to meet or exceed OEM standards, making it a suitable replacement for the Chevrolet Astro and GMC Safari models.

Common Applications and Issues Addressed

• Restores heating functionality in Chevrolet Astro and GMC Safari vehicles
• Resolves coolant leaks within the heater core assembly
• Eliminates reduced cabin heat output due to clogged or damaged cores
• Prevents overheating caused by inefficient heat exchange
• Addresses corrosion-related failures in the HVAC heating system

Installation Notes and Tips

When installing the Four Seasons Heater Core 90489, ensure the vehicle is properly drained of coolant before removal of the old core. The fixed pipe positioning requires alignment with existing HVAC connections on Chevrolet Astro and GMC Safari models. Verify all hose connections are secure to prevent leaks. It is recommended to inspect the HVAC system for any additional damage or blockages during installation.

Quality Assurance and Warranty

The Four Seasons Heater Core 90489 is manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. This part undergoes quality control testing to maintain consistent standards. Please refer to Four Seasons' warranty policy for specific coverage details related to this heater core.