Four Seasons 66201 A/C Liquid Line with Orifice Tube

Reliable A/C Liquid Line Hose Assembly for Chevrolet and GMC Trucks

The Four Seasons Hose Assembly part number 66201 is designed specifically for heavy-duty Chevrolet and GMC trucks, including the Sierra 2500 HD, Sierra 3500, and Silverado 2500 HD models. This A/C liquid line with orifice tube ensures proper refrigerant flow and system efficiency for vehicles using R134a refrigerant.

• Constructed from durable aluminum and rubber materials
• Includes gasket and fittings for a complete installation
• Equipped with a serviceable orifice tube and service port
• Features a P-nut fitting style with male liquid line gender
• Comes with a mounting bracket for secure placement
• Compatible with R134a refrigerant systems
• Includes two slimline washer O-rings (part number 24402)
• Designed as an OEM replacement part

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on providing high-quality HVAC hoses and pipes engineered for reliable performance and fitment. This product line includes hose assemblies with integrated orifice tubes and service ports, designed to meet or exceed original equipment specifications. The 66201 liquid line hose assembly is part of this line, offering a serviceable orifice tube and quick disconnect service port to facilitate maintenance and system diagnostics.

Detailed Product Description

This A/C liquid line hose assembly combines aluminum and rubber construction to withstand the pressures and temperatures typical in automotive HVAC systems. It is designed for use with R134a refrigerant and includes all necessary fittings and gaskets for a proper seal. The assembly features a male liquid line with P-nut fittings on both the suction and liquid ends, ensuring compatibility with the specified Chevrolet and GMC truck models. The included orifice tube regulates refrigerant flow, while the service port allows for easy system access without disassembly. The mounting bracket secures the hose assembly in place, maintaining system integrity during vehicle operation.

Common Applications and Issues Addressed

• Replacement of worn or leaking A/C liquid lines in Chevrolet Sierra 2500 HD and Silverado 3500 trucks
• Restoring proper refrigerant flow and pressure regulation with the integrated orifice tube
• Resolving refrigerant leaks caused by damaged fittings or seals
• Facilitating A/C system maintenance through the included service port
• Ensuring secure hose mounting to prevent vibration-related damage

Installation Notes and Tips

When installing the Four Seasons 66201 hose assembly, ensure the vehicle is compatible with R134a refrigerant systems. Use the included gasket and O-rings to prevent leaks and verify that the P-nut fittings are properly tightened. The mounting bracket should be securely fastened to avoid hose movement. It is recommended to evacuate and recharge the A/C system following installation to maintain optimal performance.

Quality Assurance and Warranty

Four Seasons products are engineered to meet original equipment standards, providing reliable fit and function. The 66201 hose assembly is an OEM replacement part, ensuring compatibility with Chevrolet and GMC heavy-duty trucks. While specific warranty details are not provided here, Four Seasons typically offers coverage against defects in materials and workmanship. Consult product documentation for exact warranty terms.