Four Seasons 66789 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66789

The Four Seasons Hose Assembly 66789 is designed specifically for Ford and Lincoln vehicles, including models such as the Flex, MKS, MKT, and Taurus. This A/C refrigerant suction hose ensures reliable performance in your vehicle's HVAC system by maintaining proper refrigerant flow and pressure.

• Constructed from durable aluminum and rubber materials
• Equipped with P-nut fittings on both ends for secure connections
• Compatible with R134-a refrigerant type
• Includes gasket and fittings for OEM replacement
• Features a low side service port with cap (part #59937) and valve core (part #59355)
• Incorporates a muffler to reduce noise
• O-ring tear drop sealing washers included (quantity: 2)
• Does not include a bracket or switch

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on providing high-quality hose assemblies tailored for HVAC systems in various vehicle makes and models. The 66789 part is part of this line, offering a direct OEM replacement that meets factory specifications. This ensures compatibility and durability for Ford and Lincoln vehicles requiring a reliable A/C refrigerant suction hose.

Detailed Product Description

This A/C refrigerant suction hose assembly is engineered with aluminum and rubber to withstand the pressures and temperatures typical in automotive HVAC systems. Both ends feature P-nut fittings, facilitating a secure and leak-resistant connection. The hose is designed for use with R134-a refrigerant, the standard for many modern vehicles. Included with the hose are essential components such as gaskets, fittings, and O-ring tear drop sealing washers to ensure a proper seal and fit. The assembly also includes a muffler to minimize operational noise. The low side service port with cap and valve core allows for convenient servicing without compromising system integrity.

Common Applications and Issues Addressed

• Replacement of worn or leaking A/C refrigerant suction hoses in Ford Flex, Lincoln MKS, MKT, and Taurus
• Resolving refrigerant leaks caused by damaged fittings or seals
• Eliminating noise issues related to suction line vibrations with the included muffler
• Ensuring proper refrigerant flow and pressure for efficient HVAC operation
• Facilitating maintenance with the integrated low side service port

Installation Notes and Tips

• Verify compatibility with your specific Ford or Lincoln model before installation
• Ensure all included gaskets and O-rings are properly seated to prevent leaks
• Use appropriate tools to tighten P-nut fittings without over-torquing
• Check the service port cap and valve core for secure fit after installation
• Inspect the hose assembly for any signs of damage or wear before installation

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66789 is an OEM replacement part designed to meet original equipment specifications for Ford and Lincoln vehicles. It includes all necessary seals and fittings to ensure a proper installation and long-lasting performance. While specific warranty details are not provided, Four Seasons products typically adhere to industry standards for quality and reliability.