Four Seasons 65641 A/C Liquid Line with Orifice Tube

Reliable A/C Liquid Line Hose Assembly for GM SUVs

The Four Seasons Hose Assembly part number 65641 is designed to provide a durable and efficient solution for the air conditioning systems in select Buick, Chevrolet, GMC, and Oldsmobile SUVs. Engineered with high-quality aluminum and rubber materials, this liquid line hose assembly ensures proper refrigerant flow and system pressure management for vehicles like the Trailblazer and Envoy.

Key Features of Four Seasons Hose Assembly 65641

• Constructed from aluminum and rubber for durability and flexibility
• Compatible with R134-a refrigerant systems
• Designed for high-pressure A/C system operation
• Includes gasket and fittings for secure connections
• Equipped with a service port sized at 16 mm for easy maintenance
• Features a P-nut fitting style on both liquid and suction ends
• Comes with a bracket for proper mounting
• Includes a serviceable orifice tube for system regulation
• O-ring slimline washers (part number 24404) included, quantity of two
• O.E. replacement part ensuring direct fit and function

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on delivering precise HVAC hose and pipe solutions tailored to specific vehicle applications. This product line emphasizes compatibility and quality, providing assemblies that include necessary components such as orifice tubes and service ports. The 65641 hose assembly exemplifies this approach by offering a complete liquid line solution designed for high-pressure R134-a systems in GM SUVs.

Detailed Product Description

This A/C liquid line hose assembly is engineered to maintain optimal refrigerant flow and pressure within the air conditioning system. The combination of aluminum and rubber materials balances strength with flexibility, reducing the risk of leaks or damage under high-pressure conditions. The inclusion of a service port and orifice tube allows for efficient system servicing and regulation. Designed with P-nut fittings on both ends, the hose assembly ensures a secure and leak-free connection. The bracket included aids in proper installation and stability within the engine compartment.

Common Applications and Issues Addressed

• Replacement of worn or leaking A/C liquid lines in Buick Bravada and GMC Envoy models
• Restoring proper refrigerant flow and pressure in Chevrolet Trailblazer and Trailblazer EXT
• Fixing A/C system leaks caused by damaged or cracked hoses
• Improving system efficiency by replacing faulty orifice tubes
• Ensuring compatibility with R134-a refrigerant systems in Oldsmobile and GMC SUVs

Installation Notes and Tips

• Verify compatibility with your specific make and model before installation
• Ensure all O-rings and fittings are properly seated to prevent leaks
• Use the included bracket to secure the hose assembly firmly in place
• Check the service port for accessibility to facilitate future maintenance
• Follow manufacturer torque specifications for P-nut fittings

Quality Assurance and Warranty

The Four Seasons Hose Assembly 65641 is an original equipment replacement part designed to meet or exceed OEM standards. Manufactured with high-quality materials and precision engineering, it supports reliable HVAC system performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.