Four Seasons 90611 HVAC Heater Core - Rear

Reliable Heater Core Replacement for Chevrolet G10, G20, and G30

The Four Seasons Heater Core 90611 is designed to restore efficient heating performance in your Chevrolet G10, G20, or G30. Crafted from durable aluminum, this heater core ensures consistent heat transfer and long-lasting operation.

• Core dimensions: 6 inches height, 5.875 inches width, 1.625 inches depth
• Constructed from corrosion-resistant aluminum material
• Tube sizes: 0.625 inch (15.88 mm) and 0.750 inch (19.05 mm) for precise fitment
• Specific fit for Chevrolet G10, G20, and G30 models
• Part number 90611 for accurate identification and replacement

About the Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on delivering reliable HVAC components engineered for specific vehicle applications. This aluminum heater core model 90611 is part of that line, offering a direct-fit solution that meets OEM specifications for Chevrolet vans. The use of aluminum enhances heat dissipation and corrosion resistance, contributing to the overall HVAC system efficiency.

Product Details and Specifications

This heater core features a compact design with a core height of 6 inches, width of 5.875 inches, and depth of 1.625 inches, making it suitable for the HVAC systems in Chevrolet G10, G20, and G30 vans. The aluminum construction provides durability and resistance to corrosion, which is critical for maintaining consistent heating performance. The two tubes measure 0.625 inch (15.88 mm) and 0.750 inch (19.05 mm), ensuring a precise and secure connection within the vehicle’s heating system. This part is specifically designed to replace the original heater core, maintaining proper fit and function.

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 installing the Four Seasons Heater Core 90611, ensure the vehicle is properly cooled down and the cooling system is drained to prevent spills. Verify tube connections match the specified diameters of 0.625 inch and 0.750 inch for a secure fit. Follow manufacturer guidelines for removal of the old heater core and installation of the new unit to maintain HVAC system integrity. Proper sealing and hose connection are essential to avoid leaks and ensure optimal heating performance.

Quality Assurance and Warranty

Four Seasons provides this heater core with a focus on quality and durability, manufactured to meet or exceed OEM standards. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Using part number 90611 ensures compatibility and reliable operation within Chevrolet G10, G20, and G30 models.