Four Seasons 55683 A/C Refrigerant Discharge / Suction Hose Assembly

OE A/C Hose Assembly for Thunderbird and Cougar

Four Seasons 55683 is an OE replacement A/C refrigerant discharge and suction hose assembly built for R134a systems. It combines aluminum and rubber construction with the correct springlock ends, manifold design, and included seals for service on select Ford and Mercury applications.

This Four Seasons Hose Assembly line focuses on direct-fit HVAC replacement parts for vehicles that need accurate hose routing and connection points. Part number 55683 is built for the 1989-1993 Ford Thunderbird, 1990 Ford Cougar, and 1989-1990 Mercury Cougar.

• Aluminum / rubber construction for A/C line durability
• Designed for R134a refrigerant systems
• Female springlock discharge end, 0.500 in. / 12.700 mm
• Male springlock suction end, 0.625 in. / 15.875 mm
• Manifold design with switch port
• O-rings included for sealing at service connections
• OE replacement configuration for factory-style fitment
• Four Seasons 55683 A/C hose assembly for discharge and suction line service

Use this hose assembly to restore refrigerant flow between A/C components when the original line is damaged, leaking, or no longer sealing correctly. The discharge and suction line layout, springlock ends, and included seals support a factory-style repair on the listed Ford Thunderbird and Cougar applications. Part number 55683 is also referenced in interchange listings for related OE-style replacement needs.

Common A/C Problems This Part Addresses

• Refrigerant leaks at hose connections or aged seals
• Cracked, hardened, or deteriorated A/C hose material
• Improper sealing at springlock fittings
• Loss of system pressure from damaged discharge or suction lines
• Service issues on vehicles using a manifold-style hose assembly

Installation Notes and Tips

Verify the discharge and suction end styles before installation: female springlock on the discharge side and male springlock on the suction side. Confirm the vehicle uses R134a refrigerant and a switch-port hose layout. Replace the included seals during installation and inspect mating surfaces, retaining clips, and adjacent A/C components for wear or contamination before reassembly.

Quality Assurance

Four Seasons 55683 is an OE replacement hose assembly built to match the factory-style configuration used on the listed Ford and Mercury vehicles. The part includes the required seals and follows the specified end styles and manifold layout for accurate HVAC service.