Four Seasons 66593 A/C Refrigerant Discharge Hose

Reliable A/C Refrigerant Discharge Hose for Toyota Highlander

The Four Seasons Hose Assembly 66593 is designed specifically for Toyota Highlander models requiring an R134a refrigerant system. This A/C refrigerant discharge hose ensures proper refrigerant flow and system integrity for your vehicle's HVAC system.

• Compatible with Toyota Highlander vehicles
• Part number 66593 for precise fitment
• Includes gasket and fittings for secure installation
• Equipped with a 16 mm QDC high side service port
• OE replacement hose assembly designed for R134a refrigerant

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line offers direct OE replacement hoses and pipes engineered to meet or exceed original equipment specifications. This product line focuses on durability and proper fitment, providing reliable HVAC hose assemblies like the 66593 discharge line for Toyota Highlander models. Each hose assembly includes necessary fittings and gaskets to facilitate installation without additional parts.

Product Details and Specifications

This A/C refrigerant discharge hose is designed for use with R134a refrigerant systems and serves as the high side discharge line. The hose assembly includes a single 16 mm quick disconnect (QDC) service port, allowing for efficient servicing of the air conditioning system. The part comes without a bracket, muffler, or switch, but includes all required fittings and a gasket to ensure a leak-free connection. As an OE replacement, part number 66593 maintains factory standards for performance and reliability in Toyota Highlander vehicles.

Common Applications and Issues Addressed

• Replacement of worn or leaking A/C refrigerant discharge hoses
• Restoring proper refrigerant flow in Toyota Highlander HVAC systems
• Resolving refrigerant leaks at the high side discharge line
• Addressing service port access issues during A/C maintenance
• Upgrading to an OE-quality hose assembly for improved system reliability

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66593, ensure the vehicle is compatible with R134a refrigerant systems. The included gasket and fittings simplify installation, but verify all connections are secure to prevent leaks. The hose assembly does not include a bracket or muffler, so reuse existing mounting hardware if applicable. Use proper tools to connect the 16 mm QDC service port and avoid damaging the hose during installation.

Quality Assurance and Warranty

Four Seasons provides OE replacement quality with this hose assembly, designed to meet original equipment specifications for Toyota Highlander vehicles. The part number 66593 undergoes rigorous quality control to ensure durability and performance. Warranty details are available through Four Seasons and typically cover defects in materials and workmanship.