Four Seasons 66315 A/C Suction and Liquid Line Hose Assembly

Overview of Four Seasons Hose Assembly 66315

The Four Seasons Hose Assembly 66315 is designed for reliable HVAC performance in select Mercedes-Benz models. This A/C suction and liquid line hose assembly is engineered to meet the demands of both high and low pressure systems, ensuring efficient refrigerant flow and system integrity.

• Constructed from durable aluminum and rubber materials
• Equipped with P-nut fitting on suction and liquid line ends
• Includes male o-ring fitting and black and green o-rings for secure sealing
• Compatible with R134a refrigerant systems
• Features a switch service port for system diagnostics
• Includes all necessary fittings and gasket/seal components
• Designed without bracket, manifold, muffler, or orifice tube for direct replacement
• OE replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on providing complete hose assemblies for automotive HVAC systems. These assemblies combine high-quality materials such as aluminum and rubber with precise fittings to maintain system pressure and refrigerant flow. The 66315 part exemplifies this line by offering a ready-to-install solution that includes essential seals and fittings, designed specifically for Mercedes-Benz vehicles requiring both suction and liquid line connections.

Detailed Product Description

This hose assembly is tailored for Mercedes-Benz models including GL63 AMG, GL350, GL450, GL500, GL550, GLE63 AMG, GLE63 AMG S, GLE300d, GLE350, GLE350d, GLE400, GLE450 AMG, GLE550e, ML63 AMG, ML250, ML350, ML400, ML500, and ML550. The assembly features a No. 12 suction end with a P-nut fitting and a female liquid line with a P-nut fitting style, ensuring compatibility with factory HVAC systems. It supports R134a refrigerant and is rated for both high and low system pressures. The inclusion of a switch service port allows for convenient system monitoring and maintenance. The part number 66315 confirms it as an OE replacement, providing a direct fit without the need for additional modifications.

Common Applications and Issues Addressed

• Replacement of worn or leaking A/C suction and liquid line hoses
• Restoring proper refrigerant flow in Mercedes-Benz HVAC systems
• Resolving pressure loss due to damaged fittings or seals
• Eliminating refrigerant leaks caused by degraded o-rings or hose material
• Facilitating system diagnostics with integrated switch service port

Installation Notes and Tips

• Ensure system is fully depressurized before removal of old hose assembly
• Verify compatibility with specific Mercedes-Benz model and year
• Inspect included o-rings and fittings for damage prior to installation
• Use proper torque specifications on P-nut fittings to avoid leaks
• Check for any additional components required by the vehicle’s HVAC system

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66315 is manufactured to meet OEM standards for fit, form, and function. It includes all necessary seals and fittings to ensure a secure and leak-free installation. This part is an OE replacement, providing confidence in its compatibility and durability. Warranty coverage details should be confirmed with the product documentation or supplier.