Four Seasons 55280 A/C Refrigerant Discharge / Suction Hose Assembly

Four Seasons 55280 A/C Hose Assembly

The Four Seasons 55280 hose assembly is an OE replacement A/C refrigerant discharge and suction line for rear air conditioning systems. Built with aluminum and rubber construction, it is made for 1996-2000 Chevrolet Express 3500 and 1996-2000 GMC Savana 3500 applications with rear AC.

Key Features

• Brand: Four Seasons Hose Assembly
• Part number: 55280
• Type: discharge and suction line assembly
• Material: aluminum / rubber
• Refrigerant type: R134a
• OE replacement design
• Manifold included
• Gasket or seal included
• O-rings included
• Discharge end style: female O-ring
• Suction end style: male insert O-ring
• Service port: without service port
• Switch port: without switch port
• Bracket: without bracket
• Muffler: without muffler

Product Details

Four Seasons 55280 is built as a direct-fit HVAC hose assembly for rear A/C systems using R134a refrigerant. It combines aluminum and rubber sections for routing flexibility and system connection, with OE-style end configurations that match the original discharge and suction line layout. This part is listed for 1996-2000 Chevrolet Express 3500 and 1996-2000 GMC Savana 3500, making it a targeted replacement for van HVAC service work. This part cross-references ACDelco 15742936 for the same application.

Common Problems This Part Addresses

• Refrigerant loss from a cracked or leaking A/C hose assembly
• Damaged discharge or suction line connections
• Rear AC performance issues caused by hose deterioration
• Failed sealing surfaces at the hose ends
• Service concerns on aging Chevrolet Express 3500 and GMC Savana 3500 HVAC systems

Installation Notes and Tips

Verify the vehicle uses rear AC and matches the listed end styles before installation. Replace the sealing washers and O-rings during service, and evacuate and recharge the system with the correct R134a refrigerant after repairs. Confirm line routing and connection points on the Chevrolet Express 3500 or GMC Savana 3500 before tightening fittings.

Quality Assurance

Four Seasons supplies OE replacement HVAC components, and this hose assembly is built to match the original application requirements for fit and function.