Four Seasons 98505 HVAC Heater Core

Reliable Heater Core Replacement for GM Vehicles

The Four Seasons Heater Core 98505 is designed to restore efficient heating performance in select Buick, Chevrolet, Oldsmobile, and Pontiac models. Engineered with durable aluminum construction, this heater core ensures consistent heat transfer and long-lasting operation for your vehicle's HVAC system.

• Core dimensions: 7-1/4 inches length, 6 inches width, 1-1/4 inches thickness
• Constructed from corrosion-resistant aluminum material
• Meets or exceeds OEM specifications for reliable fit and function
• Compatible with multiple GM models including Buick Century, Chevrolet Malibu, and Pontiac Grand Prix
• Part number 98505 for precise identification and ordering

Four Seasons Heater Core Product Line Overview

The Four Seasons Heater Core line focuses on delivering quality HVAC components that meet or exceed original equipment standards. This aluminum heater core model provides efficient heat exchange and durability, making it suitable for restoring factory heating performance in older GM vehicles. The design emphasizes direct fitment without adjustable pipe positioning, simplifying replacement procedures.

Product Details and Specifications

This heater core features a core height of 7.25 inches, width of 6 inches, and a depth of 1.25 inches, providing optimal surface area for heat transfer. The aluminum core material offers resistance to corrosion and thermal fatigue, enhancing longevity. Tube diameters measure 0.625 inches (15.875 mm) and 0.75 inches (19.05 mm), matching OEM dimensions for seamless integration. The part number 98505 corresponds to a heater core compatible with various Buick, Chevrolet, Oldsmobile, and Pontiac models such as the Cutlass Supreme, Monte Carlo, and Regal.

Common Applications and Problem Resolution

• Restores heating function in vehicles with clogged or leaking heater cores
• Eliminates coolant leaks inside the passenger compartment
• Resolves insufficient cabin heat during cold weather
• Prevents engine overheating caused by heater core failure
• Replaces corroded or damaged cores in Buick Century, Chevrolet El Camino, and Pontiac LeMans

Installation Notes and Tips

When installing the Four Seasons Heater Core 98505, ensure the vehicle is properly drained of coolant before removal. This heater core does not feature adjustable pipe positioning, so alignment with existing hoses is critical. Verify tube sizes and core dimensions to confirm compatibility with your specific model. Follow manufacturer guidelines for reassembly and coolant refilling to avoid leaks and ensure optimal heater performance.

Quality Assurance and Warranty

Four Seasons heater cores are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 98505 heater core undergoes quality control testing to ensure proper fit and function. While specific warranty details are not provided here, Four Seasons products typically include limited warranties covering defects in materials and workmanship.