Four Seasons 66478 A/C Refrigerant Discharge Hose

Overview of Four Seasons Hose Assembly 66478

The Four Seasons Hose Assembly 66478 is designed specifically for Hyundai Santa Fe 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
• Designed as a direct OE replacement for Hyundai Santa Fe

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on delivering complete hose solutions for automotive HVAC systems. This line includes assemblies that integrate necessary fittings, gaskets, and service ports to ensure proper function and ease of installation. The 66478 discharge hose assembly is part of this line, providing a high-pressure discharge line without a switch or muffler, tailored for specific vehicle applications like the Hyundai Santa Fe.

Product Features and Specifications

This A/C refrigerant discharge hose is designed to handle high system pressures typical in modern automotive air conditioning systems. It features a P-nut fitting on the suction end and includes two green O-rings (part number 24131) to ensure a tight seal. The hose assembly comes without a bracket or muffler but includes all necessary fittings and a service port for maintenance access. The service port is located on the high-pressure side and measures 16 mm in size.

Applications and Common Issues Addressed

• Replacement of worn or leaking A/C refrigerant discharge hoses on Hyundai Santa Fe
• Restores proper refrigerant flow and system pressure in R134a A/C systems
• Eliminates refrigerant leaks caused by damaged or cracked hoses
• Supports maintenance and recharging through the included high-side service port
• Prevents system contamination by providing a secure, sealed connection

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66478, ensure the vehicle is depressurized and the refrigerant properly recovered. Use the included green O-rings to maintain a leak-free seal at connection points. The hose assembly does not include a bracket or muffler, so verify existing mounting points on the Hyundai Santa Fe for secure attachment. The 16 mm service port allows for convenient system servicing without additional modifications.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as a direct OE replacement, meeting or exceeding original equipment specifications for fit, form, and function. The product includes all necessary components for installation and is designed for durability under high-pressure conditions. Warranty details should be confirmed with the product documentation or supplier, as coverage may vary.