Four Seasons 66023 A/C Refrigerant Liquid Hose

Overview of Four Seasons Hose Assembly 66023

The Four Seasons Hose Assembly 66023 is designed for high-pressure A/C refrigerant liquid line applications. Engineered with durable aluminum and rubber materials, this hose assembly is compatible with select Chevrolet and GMC trucks, providing reliable performance in demanding HVAC systems.

• Constructed from aluminum and rubber for durability and flexibility
• Compatible with R134a refrigerant systems
• Includes gasket, fittings, and two slim line sealing washers (O-Rings)
• Equipped with a 16 mm R134a quick disconnect high side service port
• Designed without a bracket and switch service port for streamlined installation
• Features a flange suction end and includes an orifice tube
• O.E. replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line from Four Seasons focuses on providing complete hose solutions for automotive HVAC systems. This line includes assemblies designed to meet original equipment specifications, ensuring compatibility and performance. The 66023 hose assembly is part of this line, offering a liquid line hose assembly without an orifice tube, tailored for high-pressure refrigerant applications in specific Chevrolet and GMC models.

Detailed Product Description

The Four Seasons 66023 hose assembly is specifically engineered for use with R134a refrigerant in high-pressure A/C systems. Its aluminum and rubber construction balances strength and flexibility, reducing the risk of leaks and wear over time. The assembly includes essential components such as fittings, gaskets, and two slim line sealing washers (O-Rings) to ensure a secure, leak-free connection. The 16 mm R134a quick disconnect service port on the high side allows for efficient servicing without the need for additional adapters. This hose assembly is designed without a bracket or switch service port, simplifying installation in compatible vehicles. The flange suction end and inclusion of an orifice tube support proper refrigerant flow and system performance.

Compatible Vehicles and Common Applications

• Chevrolet Cheyenne
• GMC Sierra, Sierra 1500
• Chevrolet Silverado 1500, Silverado 2500

This hose assembly addresses issues such as refrigerant leaks, damaged or worn liquid line hoses, and service port failures in the A/C system of these trucks.

• Leaking or cracked liquid line hoses
• Faulty or missing service ports
• Corroded or damaged fittings
• Inadequate refrigerant flow due to orifice tube issues
• Replacement of worn OEM liquid line components

Installation Notes and Tips

When installing the Four Seasons 66023 hose assembly, ensure the system is fully evacuated and depressurized before removal of the old hose. Use the included gaskets and O-Rings to maintain a proper seal and prevent leaks. The 16 mm quick disconnect service port facilitates connection to standard R134a service equipment. Since this assembly does not include a bracket or switch service port, verify mounting points and electrical connections separately. Proper torque specifications should be followed to avoid damage to fittings and ensure system integrity.

Quality Assurance and Warranty

Four Seasons hose assemblies are manufactured to meet or exceed original equipment standards, providing reliable performance in high-pressure A/C systems. The 66023 part number is an O.E. replacement, ensuring compatibility with specified Chevrolet and GMC models. This product includes all necessary fittings and sealing components for a complete installation. Warranty details are provided by Four Seasons and typically cover defects in materials and workmanship under normal use.