Four Seasons 66801 A/C Refrigerant Discharge Hose

Reliable A/C Refrigerant Discharge Hose for Toyota Highlander

The Four Seasons Hose Assembly 66801 is designed specifically for Toyota Highlander models requiring a durable and efficient A/C refrigerant discharge hose. Constructed with aluminum and rubber materials, this hose assembly ensures proper refrigerant flow and system integrity for vehicles using R134-a refrigerant.

• Compatible with Toyota Highlander A/C systems using R134-a refrigerant
• Durable aluminum and rubber construction for long-lasting performance
• Includes gasket, fittings, and bracket for secure installation
• O-ring set included with two green O-rings (part number 24109)
• Original equipment replacement discharge line without muffler or service port

Four Seasons Hose Assembly Product Line Overview

The Four Seasons Hose Assembly product line focuses on providing complete hose assemblies for automotive HVAC systems. These assemblies are engineered to meet or exceed original equipment specifications, ensuring proper fit and function. The 66801 discharge hose assembly is part of this line, offering a direct OE replacement solution for the Toyota Highlander’s A/C refrigerant discharge line.

Detailed Product Description

This A/C refrigerant discharge hose assembly (part number 66801) is constructed from a combination of aluminum and rubber materials to withstand the pressures and temperatures typical in automotive air conditioning systems. It is designed for use with R134-a refrigerant and includes all necessary fittings and a mounting bracket for a secure and leak-free installation. The assembly comes with two green O-rings (part number 24109) to ensure a proper seal. This discharge line features a P-nut fitting on the suction end and does not include a muffler, switch, or service port, aligning with the original equipment design for the Toyota Highlander.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant discharge hoses on Toyota Highlander models
• Resolving refrigerant leaks caused by cracked or deteriorated hose materials
• Restoring proper refrigerant flow to improve A/C system performance
• Eliminating rattling or vibration issues by replacing faulty discharge lines
• Ensuring compatibility with R134-a refrigerant systems in Toyota Highlander vehicles

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66801, ensure all old O-rings are removed and replaced with the included green O-rings to maintain a proper seal. The included bracket should be securely fastened to prevent movement or vibration. Since this assembly does not include a service port or switch, verify that your vehicle’s system does not require these components before installation. Proper torque specifications should be followed on all fittings to avoid leaks.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an original equipment replacement part, manufactured to meet strict quality standards. The product includes all necessary components for installation and is backed by Four Seasons’ commitment to reliability. Warranty details are available through Four Seasons and typically cover defects in materials and workmanship under normal use.