Four Seasons 66777 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66777

The Four Seasons Hose Assembly 66777 is designed specifically for the HVAC system of select Audi and Volkswagen models. This A/C refrigerant suction hose ensures reliable refrigerant flow and system efficiency for vehicles such as the Audi A3, A3 Quattro, and Volkswagen Golf, GTI, Jetta, and Eos.

• Constructed from durable aluminum and rubber materials
• Equipped with P-nut fittings on both ends for secure connections
• Compatible with R134a refrigerant systems
• Includes necessary gaskets and fittings for installation
• Features a service port with a 13 mm low side connection
• OE replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on delivering reliable hose assemblies for automotive HVAC systems. These assemblies are engineered to meet original equipment specifications, providing a direct replacement for factory parts. The 66777 hose assembly is part of this line, offering a combination of aluminum and rubber construction to withstand refrigerant pressures and temperature variations while maintaining system integrity.

Detailed Product Description

This A/C refrigerant suction hose assembly (part number 66777) is designed to handle the low side refrigerant flow in R134a systems. Both ends feature P-nut fittings, ensuring a secure and leak-free connection to the compressor and evaporator. The assembly includes green and black O-rings ([24635] and [24150]) to maintain a tight seal. It comes with a service port sized at 13 mm, allowing for easy system servicing without the need for additional adapters. The hose assembly does not include a bracket, muffler, or switch, focusing solely on the suction line function.

Applications and Common Issues Addressed

• Replacement of worn or damaged A/C refrigerant suction hoses
• Resolving refrigerant leaks caused by cracked or deteriorated hoses
• Restoring proper refrigerant flow in Audi A3 and Volkswagen Jetta HVAC systems
• Ensuring compatibility with R134a refrigerant for efficient cooling
• Maintaining system pressure and preventing contamination

Installation Notes and Tips

• Verify compatibility with your specific Audi or Volkswagen model before installation
• Ensure all O-rings are properly seated to prevent leaks
• Use appropriate tools to tighten P-nut fittings without over-torquing
• Inspect the service port for accessibility during installation
• Check for any signs of wear or damage on adjacent components

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66777 is an OE replacement part, manufactured to meet or exceed original equipment standards. It includes all necessary fittings and seals to ensure a proper installation. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.