Four Seasons 90746 HVAC Heater Core - Front

Reliable Heater Core Replacement for Ford Econoline Models

The Four Seasons Heater Core 90746 is designed to restore efficient heating performance in your Ford E-150, E-250, and E-350 Econoline vans. Engineered with durable aluminum construction, this heater core ensures consistent heat transfer and long-lasting operation.

• Core dimensions: 7-5/8 inches length, 7-1/4 inches width, 1-7/8 inches thickness
• Constructed from corrosion-resistant aluminum material
• Tube diameter: 0.75 inches (19.05 mm) for both inlet and outlet
• Meets or exceeds OEM specifications for reliable fit and function
• Compatible with Ford E-150 Econoline, E-150 Econoline Club Wagon, E-250 Econoline, E-250 Econoline Club Wagon, E-350 Econoline, and E-350 Econoline Club Wagon

About the Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on providing direct-fit replacement cores that maintain factory heating system performance. The 90746 model is part of this line, featuring aluminum core material for improved heat dissipation and durability. This product line is engineered to meet or exceed OEM standards, ensuring compatibility and reliable operation in your Ford Econoline vehicle.

Product Details and Specifications

This HVAC heater core measures 7.625 inches in height, 7.25 inches in width, and 1.875 inches in depth, making it a precise fit for the specified Ford Econoline models. The aluminum core material offers resistance to corrosion and efficient heat transfer, which is critical for maintaining cabin comfort. Both inlet and outlet tubes have a diameter of 0.75 inches (19.05 mm), matching OEM dimensions for seamless integration. Note that this heater core does not feature adjustable pipe positioning.

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 passenger compartment
• Reduced HVAC system efficiency impacting driver and passenger comfort

Installation Notes and Tips

When replacing the heater core 90746 in Ford E-150, E-250, or E-350 Econoline vans, ensure the cooling system is properly drained before removal. Verify that the inlet and outlet tubes align correctly with the vehicle’s heater hoses. Since this heater core does not have adjustable pipe positioning, precise alignment is necessary to avoid leaks. It is recommended to inspect and replace any worn seals or hoses during installation to maintain system integrity.

Quality Assurance and Warranty

The Four Seasons Heater Core 90746 meets or exceeds OEM specifications, providing 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, Four Seasons products generally adhere to industry standards for quality and reliability.