Four Seasons 66602 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66602

The Four Seasons Hose Assembly 66602 is designed specifically for the Toyota Echo HVAC system. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow, maintaining optimal air conditioning performance in your vehicle.

• Constructed from durable aluminum and rubber materials
• Features a P-nut fitting on one end and a male o-ring on the other
• Compatible with R134a refrigerant systems
• Includes green o-rings and necessary fittings for installation
• Equipped with a service port sized at 13 mm for easy maintenance
• Designed as a suction line for low-pressure A/C system operation
• OE replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on providing complete hose assemblies for automotive HVAC systems. These assemblies combine high-quality materials like aluminum and rubber with precise fittings to ensure leak-free connections and durability. The 66602 part is part of this line, offering a direct replacement suction hose for Toyota Echo models, designed to meet original equipment specifications without including additional components like brackets or mufflers.

Detailed Product Description

This A/C refrigerant suction hose assembly (part number 66602) is engineered for the Toyota Echo's HVAC system. It features a dual o-ring suction end and a P-nut fitting on the opposite end, ensuring secure connections within the low-pressure side of the air conditioning system. The hose is compatible with R134a refrigerant and includes two green o-rings (part number 24681) to maintain a tight seal. The assembly comes with all necessary fittings and a 13 mm service port to facilitate system servicing without the need for additional parts. This hose assembly does not include a bracket, muffler, or switch, focusing solely on the suction line function.

Common Applications and Issues Addressed

• Replacement of worn or leaking A/C refrigerant suction hoses in Toyota Echo vehicles
• Restoring proper refrigerant flow and pressure in the low-pressure side of the A/C system
• Eliminating refrigerant leaks caused by damaged or degraded hose materials
• Facilitating maintenance and recharging of R134a refrigerant systems via the included service port
• Ensuring OEM-level fit and sealing performance for reliable HVAC operation

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66602 on a Toyota Echo, ensure all old refrigerant is properly evacuated from the system before removal. Verify that the included green o-rings are correctly seated to prevent leaks. Use appropriate torque specifications for the P-nut fitting and male o-ring connections. The service port allows for easy system access during installation and future maintenance. Since this assembly does not include a bracket or muffler, reuse existing mounting hardware if applicable.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, meeting original equipment standards for fit, form, and function. The materials and construction are selected to withstand typical HVAC system pressures and environmental conditions. This part includes all necessary fittings and seals to ensure a reliable installation. Warranty details should be confirmed with the point of purchase or manufacturer documentation.