Four Seasons 66551 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66551

The Four Seasons Hose Assembly 66551 is designed specifically for the A/C refrigerant suction line in Ford Expedition and Lincoln Navigator models. Constructed with durable aluminum and rubber materials, this hose assembly ensures reliable low-pressure refrigerant flow for R134a systems.

• Material: Aluminum and rubber construction for durability
• End fittings: P-nut fittings on both ends for secure connections
• Refrigerant type: Compatible with R134a refrigerant
• Includes gasket and fittings for proper sealing and installation
• Equipped with a muffler to reduce noise in the HVAC system
• OE replacement part designed to meet original equipment specifications

Detailed Product Description

This Four Seasons Hose Assembly 66551 belongs to the Hose Assembly product line, which focuses on providing complete hose solutions for automotive HVAC systems. The Hose Assembly line offers components engineered to match original equipment standards, ensuring proper fit and function. This particular suction hose assembly is built to handle low-pressure refrigerant flow in R134a systems, making it suitable for the Ford Expedition and Lincoln Navigator models. The aluminum and rubber construction balances flexibility and strength, while the included tear drop sealing washer (O-ring 24243) and fittings help maintain a leak-free connection. The assembly comes without a service port or bracket but includes a muffler to minimize operational noise.

Applications and Common Issues Addressed

• Replacement of worn or cracked A/C refrigerant suction hoses
• Resolving low refrigerant pressure due to hose leaks
• Eliminating noise caused by damaged or missing mufflers in the suction line
• Restoring proper refrigerant flow in Ford Expedition and Lincoln Navigator HVAC systems
• Fixing connection leaks with included gaskets and fittings

Installation Notes and Tips

• Ensure compatibility with Ford Expedition and Lincoln Navigator models before installation
• Use the included gasket and fittings to secure leak-free connections
• Check for proper seating of P-nut fittings on both ends
• Inspect the muffler for damage and proper placement during installation
• Do not attempt to install on systems using refrigerants other than R134a

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66551 is an OE replacement part designed to meet original equipment standards for fit and function. It includes all necessary fittings and sealing components to ensure a reliable installation. While specific warranty details are not provided, Four Seasons products typically adhere to industry quality standards for automotive HVAC components.