Four Seasons 66769 A/C Refrigerant Discharge Hose

Overview of Four Seasons Hose Assembly 66769

The Four Seasons Hose Assembly 66769 is designed specifically for Audi A4 and A4 Quattro models. This A/C refrigerant discharge hose is engineered to handle high-pressure R134-a refrigerant systems, ensuring reliable performance in your vehicle's HVAC system.

• Constructed from durable aluminum and rubber materials
• Compatible with R134-a refrigerant type
• Includes gasket and fittings for secure installation
• Designed as a high-pressure discharge line without a service port or switch
• Equipped with two green O-rings (part number 24661) for proper sealing
• Features a P-nut fitting on the suction end
• OE replacement part ensuring proper fit and function

Detailed Product Description

This Four Seasons Hose Assembly from the Hose Assembly product line is a direct OE replacement designed to maintain the integrity of your Audi A4 or A4 Quattro's air conditioning system. The combination of aluminum and rubber materials provides durability and flexibility needed for high-pressure refrigerant discharge lines. The included gasket and fittings simplify installation, while the absence of a service port and switch indicates this hose is intended for systems that do not require these features. The two green O-rings (part number 24661) ensure a tight seal to prevent leaks, and the P-nut fitting on the suction end allows for secure connection within the HVAC system.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant discharge hoses
• Resolving refrigerant leaks in high-pressure lines
• Restoring proper refrigerant flow in Audi A4 and A4 Quattro HVAC systems
• Eliminating issues caused by cracked or brittle hose materials
• Maintaining system pressure and preventing compressor damage

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66769, ensure the system is fully depressurized and evacuated before removal of the old hose. Verify that the included gasket and O-rings are properly seated to prevent leaks. Use appropriate tools to tighten the P-nut fitting without over-torquing. Since this hose does not include a service port or switch, confirm compatibility with your vehicle’s existing system configuration. Professional installation is recommended to maintain system integrity and performance.

Quality Assurance and Warranty

Four Seasons products are manufactured to meet or exceed OEM specifications, providing reliable performance for your Audi A4 and A4 Quattro. The Hose Assembly product line is engineered for durability and precise fitment. This part number 66769 is an OE replacement, ensuring compatibility and quality. Warranty details should be confirmed with the product documentation or supplier.