Four Seasons 55391 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 55391

The Four Seasons Hose Assembly 55391 is designed specifically for BMW models including the 545i, 550i, 645Ci, 650Ci, 650i, and M5. This A/C refrigerant suction hose ensures reliable low-pressure operation within your vehicle's HVAC system, maintaining optimal air conditioning performance.

• Constructed from durable aluminum and rubber materials
• Features a P-nut fitting on both suction ends for secure connections
• Includes captured green o-rings (part number 24642) for effective sealing
• Compatible with R134-a refrigerant systems
• Equipped with a 13 mm service port for maintenance access
• Includes necessary fittings and gasket/seal for installation
• 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 reliable hose assemblies tailored for HVAC systems. This product line emphasizes quality materials and precise fitment to meet OEM specifications. The 55391 suction hose assembly is part of this line, providing a direct replacement solution for BMW vehicles requiring a low-pressure refrigerant suction line without additional brackets or mufflers.

Detailed Product Description

This A/C refrigerant suction hose from Four Seasons is engineered with a combination of aluminum and rubber to withstand the demands of automotive HVAC systems. The hose assembly features P-nut fittings on both ends, ensuring a secure and leak-resistant connection. It is designed for use with R134-a refrigerant and includes two green captured o-rings (part number 24642) to maintain system integrity. The hose operates under low system pressure and comes with a 13 mm service port to facilitate routine servicing. This part does not include a switch or muffler and is supplied without a mounting bracket, aligning with the original equipment design for BMW 545i, 550i, 645Ci, 650Ci, 650i, and M5 models.

Common Applications and Issues Addressed

• Replacement of worn or leaking A/C refrigerant suction hoses
• Restoring proper refrigerant flow in BMW 5 and 6 Series HVAC systems
• Eliminating low-pressure leaks that reduce air conditioning efficiency
• Addressing service port access issues during A/C maintenance
• Ensuring compatibility with R134-a refrigerant systems in specified BMW models

Installation Notes and Tips

• Verify compatibility with your BMW model before installation
• Ensure all fittings and o-rings are properly seated to prevent leaks
• Use the included gasket/seal during assembly for optimal sealing
• Check the service port for accessibility to facilitate future maintenance
• Do not reuse old o-rings; replace with the included captured o-rings

Quality Assurance and Warranty

The Four Seasons Hose Assembly 55391 is an OE replacement part manufactured to meet original equipment standards. It includes all necessary fittings and seals to ensure a proper installation. While specific warranty details are not provided, Four Seasons products typically adhere to industry quality standards to support reliable HVAC system performance in BMW vehicles.