Four Seasons 66604 A/C Refrigerant Discharge Hose

Overview of Four Seasons Hose Assembly 66604

The Four Seasons Hose Assembly 66604 is designed specifically for Toyota Tundra models requiring a reliable A/C refrigerant discharge hose. Constructed with durable aluminum and rubber materials, this hose assembly ensures efficient refrigerant flow and system performance.

• Compatible with Toyota Tundra vehicles
• Constructed from aluminum and rubber for durability
• Features P-nut fittings on both ends for secure connections
• Designed for R134a refrigerant systems
• Includes gasket and fittings for installation
• Serves as a low-pressure suction line without a service port or muffler

Detailed Product Description

This A/C refrigerant discharge hose from Four Seasons is part of the Hose Assembly product line, which focuses on providing complete hose solutions for HVAC systems. The 66604 hose assembly is engineered to replace original equipment (O.E.) parts, ensuring compatibility and maintaining system integrity. It features P-nut fittings on both ends, facilitating a secure and leak-free connection within the low-pressure suction line of the air conditioning system. The hose is designed for use with R134a refrigerant, the standard for many modern vehicles including the Toyota Tundra.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant discharge hoses
• Resolving refrigerant leaks in the low-pressure suction line
• Restoring proper refrigerant flow for efficient air conditioning performance
• Eliminating connection failures due to faulty fittings or seals
• Maintaining system pressure integrity without a service port or muffler

Installation Notes and Tips

Installation of the Four Seasons Hose Assembly 66604 requires attention to the included gasket and fittings to ensure a proper seal. The hose comes without a bracket or muffler, so verify mounting points on the Toyota Tundra before installation. Use appropriate tools to tighten the P-nut fittings securely without over-torquing to prevent damage. Since this hose does not include a service port or switch, ensure system diagnostics are completed prior to replacement.

Quality Assurance and Warranty

Four Seasons manufactures the 66604 hose assembly to meet or exceed original equipment standards. This part is an O.E. replacement designed for durability and reliable performance in Toyota Tundra HVAC systems. The product includes two green O-rings (part number 24661) to ensure a tight seal. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty against defects in materials and workmanship.