Four Seasons 66311 A/C Refrigerant Discharge Hose

Overview of Four Seasons Hose Assembly 66311

The Four Seasons Hose Assembly 66311 is designed specifically for Mercedes-Benz ML350 and ML450 models. This A/C refrigerant discharge hose ensures reliable performance in your vehicle's HVAC system by maintaining proper refrigerant flow and pressure.

• Constructed from durable aluminum and rubber materials
• Compatible with R134a refrigerant type
• Includes necessary fittings and gaskets for installation
• OEM replacement part for accurate fit and function
• Equipped with green O-rings for secure sealing
• Features a P-nut fitting on the suction end
• Does not include a muffler or service port

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on delivering complete hose solutions for automotive HVAC systems. This line includes assemblies that combine aluminum and rubber components to provide durability and flexibility. The 66311 discharge hose is part of this line, offering a direct replacement option that meets original equipment specifications for Mercedes-Benz vehicles.

Detailed Product Description

The Four Seasons 66311 A/C refrigerant discharge hose is engineered to handle the demands of the Mercedes-Benz ML350 and ML450 HVAC systems. Made from a combination of aluminum and rubber, it balances strength and flexibility to withstand temperature fluctuations and pressure changes. This hose assembly includes all necessary fittings and gaskets, including green O-rings (part numbers 24131 and 24608), ensuring a tight, leak-free connection. It is designed without a muffler or service port, and the suction end features a P-nut fitting for secure attachment. As an OEM replacement, it maintains the integrity and performance of the original component.

Common Applications and Issues Addressed

• Replacement of worn or cracked A/C refrigerant discharge hoses
• Resolving refrigerant leaks in the discharge line
• Restoring proper refrigerant flow in Mercedes-Benz ML350 and ML450 HVAC systems
• Eliminating loss of cooling efficiency due to damaged hoses
• Ensuring secure connections with included fittings and O-rings

Installation Notes and Tips

When installing the Four Seasons 66311 hose assembly, ensure the vehicle is compatible with R134a refrigerant. Use the included green O-rings to achieve a proper seal and prevent leaks. The P-nut fitting on the suction end should be tightened to manufacturer specifications. Since this hose assembly does not include a service port or muffler, verify that your system does not require these components before installation. 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 OEM replacement part, meeting original equipment standards for fit and function. The inclusion of all necessary fittings and seals supports reliable operation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.