Four Seasons 91561 HVAC Heater Core

Reliable Heater Core Replacement for Ford and Mercury Models

The Four Seasons Heater Core 91561 is designed to restore efficient heating performance in select Ford and Mercury vehicles. Engineered with durable copper and brass materials, this heater core ensures consistent heat transfer and long-lasting operation for your HVAC system.

• Core dimensions: 8 inches length, 6 inches width, 2.5 inches thickness
• Constructed from copper/brass for enhanced thermal conductivity
• Meets or exceeds OEM specifications for reliable fit and function
• Compatible with Ford Colony Park, LTD, and Mercury Marquis models
• Includes dual tubes sized 0.625 inch and 0.75 inch for coolant flow

About the Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on providing high-quality HVAC heater cores that meet or exceed original equipment manufacturer standards. This product line emphasizes durability and precise fitment, ensuring that each heater core integrates seamlessly with the vehicle’s heating system. The 91561 model exemplifies this approach with its copper/brass construction and exact core dimensions tailored for specific Ford and Mercury applications.

Product Details and Specifications

This HVAC heater core features a copper core material known for superior heat transfer and corrosion resistance. The core measures 8 inches in height, 6 inches in width, and 2.5 inches in depth, providing an optimal surface area for efficient heating. The two inlet and outlet tubes measure 0.625 inch and 0.75 inch respectively, facilitating proper coolant circulation. The fixed pipe positioning design ensures a secure and stable installation without the need for adjustments.

Common Applications and Issues Addressed

• Restores heating performance in Ford Colony Park, LTD, and Mercury Marquis vehicles
• Replaces leaking or clogged heater cores causing coolant loss
• Eliminates insufficient cabin heat due to core blockages or corrosion
• Prevents engine overheating related to heater core failures
• Resolves unpleasant odors from coolant leaks inside the vehicle

Installation Notes and Tips

When installing the Four Seasons Heater Core 91561, ensure the vehicle is cooled down and coolant is drained to prevent spills. Verify the heater core dimensions and tube sizes match the original part for proper fitment. Since the pipe positioning is fixed, align the core carefully to avoid stress on the coolant lines. It is recommended to inspect and replace any worn hoses or clamps during installation to maintain system integrity.

Quality Assurance and Warranty

The Four Seasons Heater Core 91561 meets or exceeds OEM standards, providing dependable performance for your HVAC system. Manufactured with high-quality copper and brass materials, this heater core is built to resist corrosion and wear. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.