Four Seasons 98651 HVAC Heater Core

Reliable Aluminum Heater Core for Audi, Porsche, and Volkswagen

The Four Seasons Heater Core part number 98651 is designed to restore efficient heating performance in select Audi, Porsche, and Volkswagen vehicles. Engineered with durable aluminum construction, this heater core ensures consistent heat transfer and long-lasting operation for models including the Audi 4000, Porsche 924, and Volkswagen Jetta.

Key Features of Four Seasons Heater Core 98651

• Core dimensions: 9-1/4 inches length, 6-1/4 inches width, and 1-5/8 inches thickness
• Constructed from corrosion-resistant aluminum for durability
• Core depth of 1.625 inches and core height of 9.250 inches
• Tube diameter: 0.625 inches (15.875 mm) for both inlet and outlet tubes
• Meets or exceeds original equipment manufacturer (OEM) specifications
• Non-adjustable pipe positioning for direct replacement
• Compatible with multiple Audi, Porsche, and Volkswagen models

Detailed Description of the Four Seasons Heater Core

This Four Seasons Heater Core from the Heater Core product line is crafted to provide reliable heating performance by efficiently transferring engine coolant heat into the vehicle’s cabin. The aluminum core material offers excellent thermal conductivity and resistance to corrosion, which helps maintain consistent heating over time. With precise core dimensions and tube sizes, part number 98651 is engineered for a direct fit replacement in vehicles such as the Audi 4000 Quattro, Porsche 924, and Volkswagen Rabbit Convertible. The fixed pipe positioning simplifies installation by matching OEM specifications without the need for adjustments.

Common Applications and Issues Resolved

• Restores cabin heating in Audi 4000 and Volkswagen Jetta models
• Eliminates coolant leaks caused by damaged or corroded heater cores
• Resolves insufficient heat output in Porsche 924 and Volkswagen Quantum vehicles
• Prevents engine overheating related to heater core blockages
• Replaces faulty heater cores causing coolant odors inside the cabin

Installation Notes and Tips

• Ensure compatibility with your specific vehicle make and model before installation
• Drain the cooling system prior to heater core removal to avoid spills
• Handle the aluminum core carefully to prevent damage to fins and tubes
• Check all hose connections and clamps for secure fitment after installation
• Flush the cooling system if contamination is suspected before installing the new heater core

Quality Assurance and Warranty Information

The Four Seasons Heater Core 98651 meets or exceeds OEM standards, ensuring reliable performance and durability. Manufactured with high-quality aluminum materials, this heater core is designed to withstand typical operating conditions in Audi, Porsche, and Volkswagen vehicles. Please refer to Four Seasons’ warranty policy for specific coverage details related to this part.