Four Seasons 90496 HVAC Heater Core

Overview of Four Seasons Heater Core 90496

The Four Seasons Heater Core 90496 is designed to restore efficient heating performance in select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac vehicles. This aluminum heater core provides reliable heat transfer and durability for models such as the Cavalier, Grand Am, Skylark, and more.

• Core dimensions: 6-1/4" length, 7-1/4" width, 1-3/8" thickness
• Constructed from corrosion-resistant aluminum
• Meets or exceeds OEM specifications
• Includes two tubes: 0.625" and 0.750" diameter
• Non-adjustable pipe positioning for direct fit

Four Seasons Heater Core Product Line Details

The Four Seasons Heater Core line focuses on delivering dependable HVAC heater cores engineered to meet original equipment standards. The 90496 model exemplifies this line by combining aluminum core material with precise dimensions to ensure compatibility and efficient heat exchange in various GM vehicles. This product line emphasizes durability and OEM compliance for consistent heating system performance.

Product Specifications and Features

This heater core features a core height of 6.25 inches, width of 7.25 inches, and a depth of 1.375 inches, making it suitable for specific GM models including the Buick Achieva, Cadillac Calais, Chevrolet Corsica, Oldsmobile Cutlass Calais, and Pontiac Sunbird. The aluminum construction offers resistance to corrosion and efficient heat transfer. The two inlet/outlet tubes measure 0.625 inches and 0.750 inches in diameter, designed for direct connection without adjustable pipe positioning.

Common Applications and Issues Addressed

• Restores heating system functionality in Buick Achieva and Chevrolet Cavalier
• Resolves coolant leaks within the heater core
• Eliminates insufficient cabin heat in Pontiac Grand Am and Oldsmobile Firenza
• Prevents engine overheating caused by heater core blockages
• Replaces corroded or damaged cores in Cadillac Calais and Pontiac Skylark

Installation Notes and Tips

Installation of the Four Seasons Heater Core 90496 requires draining the vehicle’s cooling system and removing the dashboard or HVAC housing to access the core. Ensure proper alignment of the inlet and outlet tubes, as this model does not feature adjustable pipe positioning. Verify all hose connections are secure to prevent leaks. It is recommended to flush the cooling system before installation to remove debris and contaminants.

Quality Assurance and Warranty

The Four Seasons Heater Core 90496 meets or exceeds OEM standards, ensuring reliable performance and durability. Manufactured with corrosion-resistant aluminum, this heater core is built to withstand typical operating conditions. While specific warranty details are not provided here, Four Seasons products generally come with a limited warranty covering defects in materials and workmanship.