Four Seasons 66314 A/C Refrigerant Liquid Hose

Overview of Four Seasons Hose Assembly 66314

The Four Seasons Hose Assembly 66314 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 Mercedes-Benz models, ensuring reliable performance in your vehicle's HVAC system.

• Constructed from aluminum and rubber for durability and flexibility
• Compatible with R134a refrigerant systems
• Includes green O-rings [24626] and [24131] for secure sealing
• Features a female liquid line with P-nut fittings on both liquid and suction ends
• Equipped with an orifice tube and switch service port for system functionality
• Designed without a bracket and service port for specific installation needs
• OE replacement part for Mercedes-Benz GL and ML series models

Four Seasons Hose Assembly Product Line

The Hose Assembly product line by Four Seasons focuses on delivering precise HVAC hose and pipe solutions tailored for vehicle air conditioning systems. This line emphasizes compatibility with original equipment specifications, providing assemblies that maintain system integrity and performance. The 66314 hose assembly is part of this line, offering a direct replacement option for Mercedes-Benz vehicles requiring a high-pressure liquid line hose.

Detailed Product Description

This A/C refrigerant liquid hose assembly is specifically designed for high-pressure R134a systems, commonly found in Mercedes-Benz GL320, GL350, GL450, GL550, ML320, ML350, ML450, ML500, and ML550 models. The combination of aluminum and rubber materials ensures resistance to wear and heat, while the included green O-rings provide a reliable seal to prevent leaks. The female liquid line with P-nut fittings on both ends facilitates secure connections within the HVAC system. Additionally, the assembly includes an orifice tube and a switch service port, which are essential for proper refrigerant flow and system monitoring. This hose assembly does not include a bracket or service port, aligning with specific OEM configurations.

Common Applications and Issues Addressed

• Replacement of worn or damaged high-pressure liquid line hoses in Mercedes-Benz GL and ML series
• Resolution of refrigerant leaks caused by degraded seals or hose material
• Restoration of proper refrigerant flow with integrated orifice tube
• Correction of HVAC system pressure issues related to faulty hose assemblies
• Maintenance of system integrity with OE-compliant components

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66314, ensure compatibility with your specific Mercedes-Benz model and verify the refrigerant type as R134a. Use the included green O-rings to achieve a proper seal and prevent leaks. The P-nut fittings require careful tightening to manufacturer torque specifications to avoid damage. Since this assembly does not include a bracket, confirm existing mounting points are secure before installation. Proper handling of the orifice tube and switch service port is essential to maintain system functionality.

Quality Assurance and Warranty

Four Seasons manufactures the 66314 hose assembly to meet or exceed OEM standards for durability and performance. This part is an exact OE replacement designed to maintain the integrity of your vehicle’s HVAC system. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.