Four Seasons 66303 A/C Refrigerant Suction Hose - Rear

Overview of Four Seasons Hose Assembly 66303

The Four Seasons Hose Assembly 66303 is designed specifically for the HVAC system of select Audi and Volkswagen models. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow, compatible with R134a refrigerant, making it a precise replacement for your vehicle's air conditioning system.

• Constructed from durable aluminum and rubber materials
• Equipped with P-nut fittings on both ends for secure connections
• Includes gasket and fittings for proper sealing and installation
• Compatible with R134a refrigerant systems
• OE replacement part ensuring proper fit and function

Detailed Product Description

The Four Seasons Hose Assembly 66303 belongs to the Hose Assembly product line, which focuses on delivering reliable and direct replacement hoses and pipes for automotive HVAC systems. This particular suction hose is engineered to handle low-pressure refrigerant flow within the air conditioning system. Featuring aluminum and rubber construction, it balances flexibility and durability to withstand typical operating conditions. Both ends of the hose utilize P-nut fittings, providing a secure and leak-resistant connection. The assembly includes a green O-ring (part number 24661) and necessary fittings, ensuring a complete installation without additional parts. This hose is designed without a service port, switch, bracket, or muffler, aligning with original equipment specifications for Audi Q5, Q7, and Volkswagen Touareg models.

Compatible Vehicles and Applications

This A/C refrigerant suction hose is compatible with the following vehicles:

• Audi Q5
• Audi Q7
• Volkswagen Touareg

It is intended for use in the low-pressure side of the air conditioning system, specifically for R134a refrigerant. The Four Seasons 66303 hose assembly serves as a direct OE replacement, ensuring proper fit and function in these models.

Common Issues Addressed by This Hose Assembly

• Leaking refrigerant due to worn or damaged suction hoses
• Reduced A/C system efficiency from compromised low-pressure lines
• Failure of original suction hose fittings causing refrigerant loss
• Corrosion or cracking in older aluminum/rubber hoses
• Incompatibility or improper sealing with aftermarket hoses

Installation Notes and Tips

• Ensure system is fully evacuated and depressurized before removal
• Inspect and replace the included green O-ring (part number 24661) to prevent leaks
• Use proper torque specifications on P-nut fittings to avoid damage
• Verify compatibility with vehicle refrigerant type R134a before installation
• Check for any signs of damage or wear on adjacent components during replacement

Quality Assurance and Warranty

Four Seasons Hose Assembly 66303 is manufactured to meet or exceed original equipment standards for durability and performance. As an OE replacement part, it undergoes rigorous quality control to ensure proper fit and function in Audi Q5, Q7, and Volkswagen Touareg vehicles. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.