Four Seasons 63299 A/C Refrigerant Liquid Hose

Overview

Four Seasons 63299 is a liquid line A/C refrigerant hose assembly for select Mercedes-Benz applications without rear air conditioning. It uses aluminum and rubber construction with P-nut fittings and is configured for R134A refrigerant service.

This Four Seasons hose assembly is built for direct replacement use in the mobile A/C system. The 63299 part number is also referenced by Continental 63299 for the same application.

Key Features

• Liquid line hose assembly for automotive air conditioning service
• Aluminum and rubber construction for a balance of routing flexibility and line support
• P-nut fittings on both ends for the specified connection style
• Configured for R134A refrigerant systems
• Includes a service port and is supplied without an orifice tube

Detailed Description

Four Seasons 63299 is a liquid line hose assembly designed around the listed Mercedes-Benz fitments and the factory-style A/C layout used on vehicles without rear AC. The assembly is specified with P-nut fittings at both ends, aluminum and rubber materials, and a liquid line configuration. It also includes the service port called out in the product data, while the orifice tube is not included in the assembly design.

Fitment coverage includes 2000-2006 Mercedes-Benz CL500, 2001-2006 Mercedes-Benz CL55 AMG, 2001-2006 Mercedes-Benz CL600, 2005-2006 Mercedes-Benz CL65 AMG, 2006 Mercedes-Benz S350, 2000-2006 Mercedes-Benz S430, 2000-2006 Mercedes-Benz S500, 2001-2006 Mercedes-Benz S55 AMG, 2001-2006 Mercedes-Benz S600, and 2006 Mercedes-Benz S65 AMG. For buyers searching for a Mercedes-Benz CL500 A/C refrigerant liquid hose or a Mercedes-Benz S500 liquid line hose assembly, 63299 matches the listed application data.

Common Uses

• Replacing a leaking or damaged A/C liquid line hose
• Restoring refrigerant flow in a system with failed hose connections
• Addressing service issues related to worn hose materials or fittings
• Repairing an A/C line assembly that no longer holds pressure
• Servicing listed Mercedes-Benz models with no rear AC

Installation Notes

Verify refrigerant type, fitting style, and vehicle configuration before installation. This part is listed for vehicles without rear AC, and the fitment notes should be matched to the exact application before service. Replace related O-rings and evacuate and recharge the system according to proper A/C service procedures.

Quality Assurance

Four Seasons states that its products are engineered and tested for long service life, backed by more than 50 years of mobile A/C experience. The 63299 hose assembly reflects that product focus on tested mobile air conditioning components.