Four Seasons 55685 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 55685

The Four Seasons Hose Assembly 55685 is designed specifically for the Lexus SC430, providing a reliable A/C refrigerant suction hose solution. Engineered with durable aluminum and rubber materials, this hose assembly ensures efficient low-pressure refrigerant flow for your vehicle's HVAC system.

• Constructed from aluminum and rubber for durability and flexibility
• Features a P-nut fitting on both suction ends for secure connections
• Includes a captured green o-ring (part number 24681) for a tight seal
• Compatible with R134-a refrigerant systems
• Equipped with a muffler to reduce noise during operation
• Includes fittings and gasket/seal for complete installation
• Designed without a bracket and switch, but includes a 13 mm service port on the low-pressure side
• OE replacement part ensuring proper fit and function

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on delivering precise HVAC hose and pipe components tailored for specific vehicle applications. This product line emphasizes quality materials and exact fitment, such as the 55685 suction hose assembly designed for the Lexus SC430. Each hose assembly in this line is engineered to meet or exceed original equipment specifications, ensuring reliable performance in automotive air conditioning systems.

Detailed Product Description

The Four Seasons 55685 A/C refrigerant suction hose is a critical component in the Lexus SC430’s HVAC system. It facilitates the low-pressure flow of R134-a refrigerant from the evaporator to the compressor. The hose assembly combines aluminum and rubber materials to balance strength and flexibility, reducing the risk of leaks or damage under normal operating conditions. The P-nut fittings on both ends provide secure, leak-resistant connections, while the included captured green o-rings ensure a proper seal. Additionally, the integrated muffler helps minimize operational noise, contributing to a quieter cabin environment. This hose assembly comes complete with necessary fittings and gaskets, simplifying installation without the need for additional parts.

Common Issues Addressed by This Hose Assembly

• Leaks in the A/C refrigerant suction line causing reduced cooling efficiency
• Damaged or cracked hoses leading to refrigerant loss
• Noise from the suction line due to lack of muffler or worn components
• Improper sealing resulting in system pressure drops
• Failure of original equipment suction hoses due to age or wear

Installation Notes and Tips

• Ensure the system is fully depressurized before removal of the old hose
• Verify the P-nut fittings and captured o-rings are properly seated to prevent leaks
• Use the included gasket and fittings for a complete and secure installation
• Check the service port size (13 mm) compatibility with your A/C service tools
• Inspect the hose assembly for any damage before installation

Quality Assurance and Warranty

The Four Seasons Hose Assembly 55685 is an OE replacement part designed to meet original equipment standards for the Lexus SC430. Manufactured with high-quality materials and tested for durability, this hose assembly supports reliable HVAC system performance. Warranty details are provided by Four Seasons and typically cover defects in material and workmanship under normal use conditions.