Four Seasons 55689 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 55689

The Four Seasons Hose Assembly 55689 is designed specifically for the HVAC system of Lexus IS250 and IS350 models. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow with durable aluminum and rubber construction.

• Material: Aluminum and rubber for durability and flexibility
• End 1 Type: P-nut fitting for secure connection
• End 2 Type: Captured green o-ring (part number 24682) included
• Refrigerant Type: Compatible with R134-a refrigerant
• Component Type: Suction line for low-pressure A/C system
• Includes gasket, fittings, and muffler for noise reduction
• OE replacement part designed without bracket or service port

Details on Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly product line focuses on providing complete hose assemblies for automotive HVAC systems. These assemblies combine high-quality materials and precise fittings to maintain system integrity and performance. The 55689 hose assembly is part of this line, offering a direct OE replacement for Lexus IS250 and IS350 suction lines, ensuring compatibility and ease of installation.

Product Description and Features

This A/C refrigerant suction hose assembly is constructed with a combination of aluminum and rubber, providing both strength and flexibility to withstand the demands of the HVAC system. The hose features a P-nut fitting on the suction end and a captured green o-ring on the opposite end, ensuring a tight, leak-free seal. It is designed for use with R134-a refrigerant and operates under low system pressure. The assembly includes necessary gaskets and fittings, as well as a muffler to reduce operational noise. This part does not include a bracket or service port and is intended as a direct OE replacement for Lexus IS250 and IS350 models.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant suction hoses
• Resolving refrigerant leaks caused by degraded seals or fittings
• Eliminating noise issues with integrated muffler design
• Restoring proper refrigerant flow in low-pressure A/C systems
• Maintaining system integrity with OE-quality components

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 55689, ensure the P-nut fitting and captured o-ring are properly seated to prevent leaks. Use the included gasket and fittings to secure connections. Since this assembly does not include a bracket, verify existing mounting points are intact and secure. The hose is designed for use without a service port or switch, so no additional components are required. Proper handling of the aluminum and rubber materials will help avoid damage during installation.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, meeting or exceeding original equipment specifications for fit, form, and function. The inclusion of all necessary seals and fittings supports reliable performance. Warranty details should be confirmed with the product documentation or manufacturer, as coverage may vary.