Four Seasons 63222 A/C Refrigerant Discharge Hose

Overview

Four Seasons 63222 is an A/C refrigerant discharge hose assembly built for Mercedes-Benz ML-Class applications. It combines aluminum and rubber construction with the correct refrigerant compatibility for R134a and R1234yf service needs.

This hose assembly is a direct-fit replacement for the discharge line on compatible Mercedes-Benz ML320, ML430, and ML55 AMG models. The Four Seasons 63222 part number is also referenced by cross numbers used for the same application.

Key Features

• Aluminum and rubber construction for a balance of routing flexibility and line support.
• Compatible with R134a and R1234yf refrigerant systems.
• Gasket or seal included for service-ready sealing at the connection points.
• Switch service port included for system service access.
• Built as a hose assembly for discharge line replacement.

Detailed Description

Four Seasons 63222 is an HVAC hose assembly for the A/C refrigerant discharge circuit. It is engineered for Mercedes-Benz ML320, ML430, and ML55 AMG vehicles listed in the fitment data, and it matches the discharge line application used on those models. The aluminum/rubber construction supports the demands of refrigerant routing while maintaining the flexibility needed for proper installation. The part number 63222 should be verified against the vehicle’s existing line and refrigerant system before ordering.

Four Seasons backs this hose assembly with more than 50 years of mobile A/C experience, and the product is engineered and tested for dependable operation. This part cross-references Genuine 1635000172 and UAC HA112305C for the same application. Four Seasons 63222 is a practical replacement choice when servicing the A/C discharge hose on a Mercedes-Benz ML320 or related ML-Class model.

What It Helps Solve

• Leaking or damaged A/C discharge hose assemblies.
• Loss of refrigerant pressure in the discharge line.
• Service issues caused by worn sealing surfaces.
• Faulty or inaccessible A/C service port connections.

Installation Notes

Confirm the vehicle’s refrigerant type, line routing, and connection style before installation. Replace the hose assembly only after the system has been properly recovered and evacuated by qualified A/C service procedures. Verify that the included seal is seated correctly and that the switch service port matches the original configuration.

Quality Assurance

Four Seasons states that its products are engineered and tested for years of trouble-free operation, supported by more than 50 years of mobile A/C experience.