Four Seasons 55063 A/C Refrigerant Discharge / Suction Hose Assembly

Four Seasons 55063 A/C Hose Assembly

The Four Seasons 55063 is an OE replacement A/C refrigerant discharge and suction hose assembly for select GM A-body and G-body applications. Built with aluminum and rubber construction, it is made for R134a systems and includes the required seals and O-rings for service-ready replacement.

This hose assembly is a direct-fit option for vehicles such as the Buick Regal, Chevrolet Monte Carlo, Oldsmobile Cutlass Supreme, and Pontiac Grand Prix. The Four Seasons Hose Assembly line focuses on replacement HVAC hose and pipe components for factory-style service on older air conditioning systems.

Key Features

• Part number 55063 A/C refrigerant discharge / suction hose assembly
• Aluminum / rubber construction for HVAC routing and vibration control
• For R134a refrigerant systems
• OE replacement design for factory-style service
• Includes gasket or seal and O-rings
• Manifold style hose assembly with muffler
• Female O-ring ends with UNF O-ring discharge end style
• Switch service port provision included; service port not included
• Fittings not included; bracket not included

Detailed Description

Four Seasons 55063 is an A/C discharge and suction line assembly engineered for select 1978-1987 Buick Regal, 1980-1987 Chevrolet Monte Carlo, 1978-1987 Oldsmobile Cutlass variants, and 1982-1987 Pontiac Grand Prix applications. It is also listed for related models including Chevrolet El Camino, Malibu, Pontiac Bonneville, Parisienne, Grand LeMans, LeMans, and Grand Am, with fitment notes that vary by compressor configuration on certain 1981 vehicles. If you are replacing a leaking or damaged hose on an R134a-converted system, this part number 55063 provides the correct hose assembly format for service on these platforms.

This part cross-references Monroe Shocks & Struts (e.g., 34785) for the same application.

What It Helps Fix

• A/C refrigerant leaks at aged hose sections or seal points
• Loss of cooling performance caused by damaged discharge or suction lines
• Cracked, hardened, or oil-soaked HVAC hose material
• Improper sealing at female O-ring connections
• Service issues on vehicles using an R134a refrigerant setup

Installation Notes and Tips

• Verify the vehicle year, make, model, and compressor note before ordering.
• Inspect mating surfaces and replace worn seals during installation.
• Confirm the system is set up for R134a refrigerant before service.
• Check that the switch port and manifold layout match the original hose routing.
• Have the system evacuated, repaired, and recharged by a qualified HVAC technician after installation.

Quality Assurance

Four Seasons 55063 is an OE replacement hose assembly built to match the original application requirements for listed vehicles. It is supplied with included seals and O-rings to support proper sealing at the connection points.