Four Seasons 55140 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 55140

The Four Seasons Hose Assembly 55140 is designed specifically for the A/C refrigerant suction line in select INFINITI and Nissan vehicles. Engineered with durable aluminum and rubber materials, this hose assembly ensures reliable low-pressure refrigerant flow for models like the Nissan Maxima and INFINITI I35.

• Constructed from aluminum and rubber for durability and flexibility
• Features a male o-ring fitting on one end and a P-nut fitting on the other
• Compatible with R134-a refrigerant systems
• Includes green o-rings and necessary fittings for installation
• Equipped with a muffler to reduce noise during operation
• Designed as an OEM replacement part for suction line applications
• Includes a 13 mm service port on the low-pressure side without a switch port

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on providing complete hose solutions for HVAC systems in vehicles. This line includes assemblies that combine multiple components such as fittings, seals, and mufflers to ensure proper refrigerant flow and system integrity. The 55140 part is part of this line, offering a ready-to-install suction hose assembly that meets OEM specifications for Nissan and INFINITI models.

Detailed Product Description

The Four Seasons 55140 A/C Refrigerant Suction Hose is designed to handle low-pressure refrigerant flow within the vehicle’s air conditioning system. Its aluminum and rubber construction balances strength and flexibility, allowing it to withstand the thermal and mechanical stresses typical in automotive HVAC systems. The hose assembly includes a male o-ring fitting on one end and a P-nut fitting on the other, ensuring a secure and leak-free connection. The included green o-rings (part numbers 24661 and 24684) provide reliable sealing, while the integrated muffler helps minimize operational noise. This assembly is compatible with R134-a refrigerant and features a 13 mm service port on the low-pressure side for maintenance access. It does not include a switch or bracket, aligning with original equipment design.

Common Applications and Issues Addressed

• Replacement of worn or leaking A/C refrigerant suction hoses in Nissan Maxima and INFINITI I35
• Resolving low-pressure refrigerant leaks that reduce cooling efficiency
• Eliminating noise caused by damaged or missing mufflers in the suction line
• Restoring proper refrigerant flow to maintain optimal A/C system performance
• Addressing fitting or seal failures that cause refrigerant loss

Installation Notes and Tips

• Ensure compatibility with Nissan Maxima and INFINITI I35 models before installation
• Inspect and replace green o-rings included with the assembly to prevent leaks
• Use proper torque specifications on male o-ring and P-nut fittings to avoid damage
• Verify the service port is accessible for future maintenance
• Check for proper seating of the muffler to reduce noise effectively

Quality Assurance and Warranty

The Four Seasons Hose Assembly 55140 is manufactured to meet or exceed OEM standards for fit, form, and function. It serves as a direct replacement part for the suction line in compatible Nissan and INFINITI vehicles. The product includes all necessary fittings and seals to ensure a secure installation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.