Four Seasons 91593 HVAC Heater Core

Reliable Heater Core Replacement for Mercury Montego

The Four Seasons Heater Core part number 91593 is designed specifically for Mercury Montego models, providing efficient heating performance and durability. This copper/brass heater core meets or exceeds OEM standards to ensure proper fit and function.

• Core dimensions: 6 inches length, 6 inches width, 2 inches thickness
• Constructed from copper and brass for enhanced heat transfer and corrosion resistance
• Core depth and height both measure 6 inches, with a 2-inch core thickness
• Tube diameter: 0.625 inches (15.875 mm) for both inlet and outlet tubes
• Non-adjustable pipe positioning for direct OEM replacement
• Compatible with Mercury Montego vehicles

About the Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on delivering HVAC components that meet or exceed original equipment manufacturer specifications. This heater core is engineered to provide reliable heating performance and long service life, making it a suitable replacement part for Mercury Montego models requiring a copper/brass heater core.

Product Details and Specifications

This heater core features a copper/brass construction that offers efficient heat transfer and resistance to corrosion, essential for maintaining optimal HVAC system performance. The core measures 6 inches in length and width, with a thickness of 2 inches, ensuring compatibility with the specified vehicle fitment. Both inlet and outlet tubes have a diameter of 0.625 inches (15.875 mm), matching OEM dimensions for straightforward installation. The pipe positioning is fixed, reflecting the original design for the Mercury Montego.

Common Applications and Issues Addressed

• Restores heating function in Mercury Montego HVAC systems
• Replaces leaking or clogged heater cores
• Eliminates coolant odors inside the cabin
• Prevents engine overheating caused by heater core failure
• Improves overall HVAC system efficiency and comfort

Installation Notes and Tips

When installing the Four Seasons Heater Core 91593, ensure the vehicle is properly drained of coolant to avoid spills. Verify the heater core dimensions and tube sizes match the original part before installation. Since pipe positioning is not adjustable, confirm alignment with existing HVAC hoses. Follow manufacturer guidelines for flushing the cooling system to remove debris and prevent premature heater core failure.

Quality Assurance and Warranty

The Four Seasons Heater Core 91593 is manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. This part is backed by Four Seasons' quality standards, providing confidence in its fit and function for Mercury Montego vehicles. Please refer to Four Seasons for specific warranty details.