Four Seasons 66301 A/C Refrigerant Suction Hose - Front

Overview of Four Seasons Hose Assembly 66301

The Four Seasons Hose Assembly 66301 is designed specifically for the HVAC system of select Audi and Volkswagen models. This A/C refrigerant suction hose is engineered to maintain low-pressure refrigerant flow, ensuring efficient air conditioning performance in vehicles like the Audi Q5, Q7, and Volkswagen Touareg.

• Constructed from durable aluminum and rubber materials
• Equipped with P-nut fittings on both ends for secure connections
• Compatible with R134a refrigerant systems
• Includes gasket and fittings for proper sealing and installation
• OE replacement part designed for low-pressure suction line applications

Detailed Product Description

The Four Seasons Hose Assembly 66301 belongs to the Hose Assembly product line, which focuses on delivering reliable and precise HVAC hose and pipe solutions. This particular suction hose is made from a combination of aluminum and rubber, providing both flexibility and durability under typical operating conditions. It features P-nut fittings on both ends, facilitating a secure and leak-resistant connection within the air conditioning system. The hose is designed for use with R134a refrigerant, the standard refrigerant type for many modern vehicles.

Included with the hose assembly are the necessary gasket and fittings, including a green O-ring (part number 24681), to ensure a proper seal and prevent refrigerant leaks. This part does not include a bracket, muffler, or service port, and it is intended as a direct OE replacement for the suction line in the HVAC system. The hose is rated for low-pressure system operation, making it suitable for the refrigerant suction side.

Compatible Vehicles and Applications

• Compatible with Audi Q5 and Q7 models
• Compatible with Volkswagen Touareg models
• Designed for HVAC refrigerant suction line replacement
• Ideal for addressing low-pressure refrigerant flow issues

Common Issues Addressed by This Hose Assembly

• Refrigerant leaks due to worn or damaged suction hoses
• Reduced A/C cooling efficiency from compromised suction lines
• Failure of low-pressure refrigerant flow causing system malfunctions
• Replacement of OEM suction hoses to restore proper HVAC function
• Prevention of contamination entering the A/C system through faulty hoses

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66301, ensure that all fittings and gaskets are properly seated to prevent refrigerant leaks. Use the included green O-ring (part number 24681) as specified to maintain a secure seal. This hose assembly is designed without a bracket or muffler, so verify mounting points and secure the hose appropriately to avoid vibration or contact with other components. The P-nut fittings require careful tightening to manufacturer torque specifications to avoid damage.

Quality Assurance and Warranty

Four Seasons products, including the Hose Assembly 66301, are manufactured to meet or exceed OEM standards for fit, form, and function. This part is an exact OE replacement designed to maintain the integrity of the vehicle’s HVAC system. While specific warranty details are not provided here, Four Seasons typically offers coverage against defects in material and workmanship. Always consult product documentation or the manufacturer for warranty terms.