Four Seasons 55064 A/C Refrigerant Discharge / Suction Hose Assembly

Four Seasons 55064 A/C Hose Assembly

Four Seasons 55064 is an OE replacement A/C refrigerant discharge and suction hose assembly for select GM full-size cars. It is built with aluminum and rubber construction, uses R134a refrigerant, and includes the required seals and O-rings for the hose connections.

This hose assembly is listed for 1986-1988 Buick Century, 1986-1988 Buick LeSabre, 1986-1988 Oldsmobile 98, 1986-1988 Oldsmobile Delta 88, and 1986-1988 Pontiac Bonneville. It is a direct-fit HVAC hose assembly for vehicles that use a manifold-style line layout.

Key Features

• Four Seasons hose assembly, part number 55064
• Discharge and suction line design for A/C refrigerant routing
• Aluminum / rubber construction for OE-style fit and flexibility
• R134a refrigerant type
• Includes gasket or seal and O-rings
• Female O-ring ends with UNF O-ring discharge and suction connections
• Manifold-style assembly
• OE replacement part
• Switch service port provision included; service port not included
• Fits select Buick, Oldsmobile, and Pontiac applications

Product Details

Four Seasons Hose Assembly line products are built for replacement of factory A/C plumbing components with the correct connection style and refrigerant routing. Part number 55064 is a discharge and suction hose assembly with aluminum and rubber materials, female O-ring ends, and included seals to support a proper connection at the HVAC system. This part cross-references Gates 34846 and UAC HA10912C for the same application.

Common A/C Problems This Part Can Address

• Refrigerant loss from cracked or deteriorated hose material
• Leaks at hose-to-component connections
• Damaged or worn O-ring sealing surfaces
• Improper A/C line routing after hose failure
• Loss of cooling performance caused by a compromised discharge or suction line

Installation Notes

Verify the vehicle’s A/C line layout, manifold configuration, and connection style before installation. Replace the existing seals with the included O-rings and confirm that the mating surfaces are clean and undamaged. Because this assembly is for R134a systems, confirm refrigerant compatibility before service. Professional A/C evacuation, leak checking, and recharge procedures are recommended after installation.

Quality Assurance

Four Seasons 55064 is an OE replacement hose assembly built to match the original application requirements for select 1986-1988 Buick Century, Buick LeSabre, Oldsmobile 98, Oldsmobile Delta 88, and Pontiac Bonneville models.