Four Seasons 66308 A/C Refrigerant Liquid Hose - Rear

Overview of Four Seasons Hose Assembly 66308

The Four Seasons Hose Assembly 66308 is designed specifically for the Audi Q7 HVAC system, providing a reliable replacement for the A/C refrigerant liquid hose. Engineered with durable aluminum and rubber materials, this hose assembly supports high-pressure R134a refrigerant systems to maintain optimal air conditioning performance.

• Constructed from aluminum and rubber for durability and flexibility
• Compatible with R134a refrigerant type and high-pressure systems
• Includes green O-rings (part number 24649) for secure sealing
• Features male liquid line with P-nut fitting style
• OEM replacement part with orifice tube included
• Does not include a service port, switch port, or mounting bracket

Detailed Product Description

This Four Seasons Hose Assembly from the Hose Assembly product line is a direct OEM replacement designed to meet the specifications of the Audi Q7’s HVAC system. The assembly combines aluminum and rubber materials to withstand the demands of high-pressure refrigerant flow, specifically for R134a systems. It features a male liquid line with a P-nut fitting style, ensuring a secure and leak-free connection. The included green O-rings (two in quantity) provide additional sealing integrity. This hose assembly comes with an orifice tube integrated, which is essential for regulating refrigerant flow within the system. Notably, this part does not include a service port, switch service port, or mounting bracket, so installation will require using existing components or additional hardware as needed.

Applications and Common Issues Addressed

• Replacement of worn or damaged A/C refrigerant liquid hoses in Audi Q7 models
• Resolving refrigerant leaks caused by cracked or deteriorated hose materials
• Restoring proper refrigerant flow and pressure in high-pressure R134a systems
• Fixing issues related to poor sealing or O-ring failure in the liquid line
• Addressing HVAC system inefficiencies due to faulty orifice tube assemblies

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66308 on an Audi Q7, ensure the system is fully depressurized and evacuated before removal of the old hose. Verify that the green O-rings are properly seated to prevent leaks. Since this assembly does not include a service port or mounting bracket, confirm that existing components are compatible or procure necessary hardware separately. Tighten P-nut fittings to manufacturer torque specifications to maintain system integrity.

Quality Assurance and Warranty

Four Seasons manufactures the Hose Assembly 66308 to meet or exceed OEM standards for durability and performance in high-pressure HVAC applications. This part is an exact replacement for the original equipment, ensuring compatibility and reliability. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for precise warranty terms.