Four Seasons 66313 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66313

The Four Seasons Hose Assembly 66313 is designed specifically for Mercedes-Benz ML350 and ML450 models. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow within your vehicle's HVAC system, maintaining optimal air conditioning performance.

• Constructed from durable aluminum and rubber materials
• Equipped with P-nut fittings on both ends for secure connections
• Compatible with R134a refrigerant systems
• Includes green O-rings [24684] and [24635] for proper sealing
• OE replacement part designed for direct fitment
• Includes necessary fittings and gasket for installation
• Does not include a service port, switch, bracket, or muffler

Detailed Product Description

This Four Seasons Hose Assembly from the Hose Assembly product line is engineered to meet the specifications of Mercedes-Benz ML350 and ML450 vehicles. The combination of aluminum and rubber materials provides flexibility and durability, essential for handling low-pressure refrigerant flow in the A/C suction line. Both ends feature P-nut fittings, ensuring a secure and leak-free connection to the HVAC system. The hose is designed for use with R134a refrigerant, the standard for many modern vehicles. Included green O-rings and fittings facilitate a proper seal and straightforward installation. This hose assembly is an OE replacement, guaranteeing compatibility and performance consistent with factory standards.

Common Applications and Issues Addressed

• Replacement of worn or cracked A/C refrigerant suction hoses
• Resolving low refrigerant pressure issues in Mercedes-Benz ML350 and ML450 HVAC systems
• Fixing refrigerant leaks caused by damaged fittings or seals
• Restoring proper refrigerant flow to improve air conditioning efficiency
• Eliminating noise or vibration related to faulty suction lines

Installation Notes and Tips

• Ensure the vehicle is compatible: Mercedes-Benz ML350 or ML450 models
• Verify that the refrigerant type is R134a before installation
• Use the included green O-rings to maintain a proper seal at both P-nut fittings
• Check for any signs of damage or wear on adjacent components during installation
• Do not attempt to install if the hose assembly includes a service port or switch, as this model does not

Quality Assurance and Warranty

Four Seasons Hose Assembly 66313 is manufactured to meet OEM standards for fit and function. As an OE replacement part, it ensures reliable performance in Mercedes-Benz ML350 and ML450 vehicles. The product includes all necessary fittings and gaskets for installation. Warranty details are provided by Four Seasons and typically cover defects in materials and workmanship under normal use.