Four Seasons 66592 A/C Refrigerant Discharge Hose

Overview of Four Seasons Hose Assembly 66592

The Four Seasons Hose Assembly 66592 is designed specifically for Toyota Highlander models requiring a reliable A/C refrigerant discharge hose. Engineered with durable aluminum and rubber materials, this hose assembly supports high-pressure R134a refrigerant systems to maintain optimal HVAC performance.

• Constructed from aluminum and rubber for durability and flexibility
• Compatible with R134a refrigerant systems
• Includes gasket and fittings for secure installation
• Equipped with a 16 mm high-side service port for easy maintenance
• Designed as a direct OE replacement for Toyota Highlander vehicles

Detailed Product Description

This A/C refrigerant discharge hose from Four Seasons is part of the Hose Assembly product line, which focuses on delivering complete hose solutions for automotive HVAC systems. The 66592 hose assembly features a high-pressure discharge line constructed from a combination of aluminum and rubber, ensuring resistance to wear and heat. It includes two green O-rings (part number 24661) and necessary fittings to provide a secure, leak-free connection. The hose is designed without a bracket or muffler but includes a service port on the high-pressure side with a 16 mm size, facilitating efficient system servicing. The suction end uses a P-nut fitting, and the assembly does not include a switch or muffler.

Compatible Vehicles and Applications

This hose assembly is compatible with Toyota Highlander models that utilize R134a refrigerant in their HVAC systems. It serves as a direct OE replacement, ensuring proper fit and function within the vehicle's air conditioning system.

• Replaces worn or damaged A/C refrigerant discharge hoses
• Addresses refrigerant leaks in the high-pressure discharge line
• Restores proper refrigerant flow and system pressure
• Eliminates issues related to faulty or missing service ports
• Prevents contamination and maintains system integrity with included O-rings

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66592, ensure the vehicle’s A/C system is fully depressurized and evacuated before removal of the old hose. Use the included fittings and gaskets to secure connections and prevent leaks. The 16 mm high-side service port allows for convenient system charging and diagnostics. Verify that the P-nut fitting on the suction end is properly tightened to avoid refrigerant loss. Since this assembly does not include a bracket or muffler, confirm that the hose is properly supported and routed according to Toyota Highlander specifications.

Quality Assurance and Warranty

Four Seasons manufactures the Hose Assembly 66592 to meet or exceed OEM standards for durability and performance. This part is an exact OE replacement designed to maintain the integrity of the Toyota Highlander’s HVAC system. The product includes all necessary seals and fittings to ensure a reliable installation. Warranty details are provided by Four Seasons and typically cover defects in material and workmanship under normal use conditions.