Four Seasons 55631 A/C Refrigerant Suction Hose

Four Seasons 55631 A/C Suction Hose Accumulator

Four Seasons 55631 is an accumulator with hose assembly for R134a air conditioning systems. Built with an aluminum body and OE-style connection points, it is a direct-fit HVAC replacement for select Ford and Mercury applications, including Ford LTD, Ford Mustang, Mercury Capri, and Mercury Grand Marquis.

Key Features

• Brand: Four Seasons Accumulator line
• Part number: 55631
• Refrigerant type: R134a
• Accumulator body length: 8.000 in. (203.200 mm)
• Accumulator body diameter: 3.500 in. (88.900 mm)
• Material: aluminum
• Style: suction side
• Inlet type: female O-ring, 5/8 in. (15.875 mm)
• Outlet type: male insert O-ring, 5/8 in. (15.875 mm)
• Includes 1 switch port
• Meets or exceeds OEM requirements

Product Details

The Four Seasons Accumulator product line focuses on replacement HVAC components built to match factory system layouts. This 55631 accumulator w/ hose assy is configured for suction-side service in R134a systems and uses female O-ring inlet and male insert O-ring outlet connections for proper sealing. It is an OE-style replacement for select 1983-1985 Ford Mustang, 1984-1985 Ford LTD, 1983-1985 Mercury Capri, and 1983-1985 Mercury Grand Marquis applications, with fitment listed for factory air and accumulator-equipped configurations.

This part cross-references Anchor 3628 for the same application.

Common Repair Uses

• Replacing a leaking or damaged A/C suction hose assembly
• Restoring proper refrigerant flow in an R134a system
• Addressing poor sealing at the accumulator connection points
• Repairing corrosion or wear on aluminum HVAC lines
• Correcting A/C performance issues tied to a failed suction-side component

Installation Notes

Verify refrigerant type, port style, and hose routing before installation. Replace O-rings as needed, evacuate and recharge the system to the correct specification, and confirm the switch port connection is properly seated. Fitment includes 1983-1985 Ford Mustang, 1984-1985 Ford LTD, 1983-1985 Mercury Capri, and 1983-1985 Mercury Grand Marquis; review the vehicle notes for factory air, dealer air, and accumulator-specific configurations before ordering.

Quality Assurance

Four Seasons 55631 is listed as meeting or exceeding OEM requirements for the specified applications. It is engineered as a replacement accumulator assembly for factory-style HVAC service on Ford and Mercury vehicles.