Four Seasons 98535 HVAC Heater Core

Reliable Heater Core Replacement for Classic GM Vehicles

The Four Seasons Heater Core 98535 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 warmth and comfort during colder months.

• Core dimensions: 9-1/4 inches length, 6 inches width, 2 inches thickness
• Constructed from corrosion-resistant aluminum material
• Core depth and height precisely 2.000 and 9.250 inches respectively
• Tube sizes: 0.625 inch (15.875 mm) and 0.750 inch (19.050 mm)
• Meets or exceeds OEM specifications for reliable fit and function

Four Seasons Heater Core Product Line Overview

The Four Seasons Heater Core line focuses on delivering quality HVAC components that meet original equipment standards. The Heater Core 98535 is part of this line, offering a direct replacement solution with aluminum construction for enhanced heat transfer and durability. This product line supports a range of classic GM vehicles, ensuring compatibility and performance consistency.

Detailed Product Description and Specifications

This HVAC heater core features an aluminum core designed to provide efficient heat exchange within the vehicle’s heating system. With core dimensions of 9.25 inches in height, 6 inches in width, and 2 inches in depth, it fits precisely into the designated space for models such as the Chevrolet Impala, Buick LeMans, Pontiac GTO, and Oldsmobile Cutlass Supreme. The heater core includes two tubes sized at 0.625 and 0.750 inches, facilitating proper coolant flow. The fixed pipe positioning ensures a secure fit without the need for adjustments. The part number 98535 corresponds to this specific configuration, making it easier to identify for replacement needs.

Compatible Vehicles and Common Applications

• Buick models: LeMans, Skylark, and more
• Chevrolet models: Bel Air, Caprice, Monte Carlo, Impala, El Camino
• Oldsmobile models: Cutlass, Cutlass Supreme
• Pontiac models: Bonneville, Catalina, Grand Prix, GTO
• Custom Cruiser and other classic GM vehicles

Common Issues Addressed by This Heater Core

• Insufficient cabin heat during cold weather
• Coolant leaks inside the vehicle’s HVAC system
• Clogged or corroded heater core reducing heat transfer
• Unpleasant odors caused by leaking coolant
• Fogging or moisture buildup on interior windows

Installation Notes and Tips

When replacing the heater core 98535, ensure the vehicle’s cooling system is properly drained before removal. Due to the fixed pipe positioning, verify alignment with existing hoses to avoid installation issues. It is recommended to inspect and replace any worn or damaged hoses and clamps during installation. Proper sealing and secure connections will prevent leaks and maintain system efficiency.

Quality Assurance and Warranty Information

The Four Seasons Heater Core 98535 meets or exceeds OEM standards, 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 come with a limited warranty covering defects in materials and workmanship.