Four Seasons 55457 A/C Refrigerant Discharge / Suction Hose Assembly

OE Replacement A/C Hose Assembly

Four Seasons 55457 is an OE replacement A/C refrigerant discharge and suction hose assembly for select Chevrolet S10, Chevrolet S10 Blazer, GMC S15, and GMC S15 Jimmy applications. Built with aluminum and rubber construction and set up for R134a refrigerant, it is made for direct service on the HVAC line routing used in these vehicles.

Key Features

• Part number 55457 from Four Seasons Hose Assembly line
• Discharge and suction line design with manifold
• Aluminum / rubber construction for HVAC service use
• R134a refrigerant type
• Female O-ring ends with UNF O-ring discharge and suction connections
• Gasket or seal included; O-rings included
• OE replacement design
• Fits 1982-1986 Chevrolet S10, N/A
• Fits 1983-1986 Chevrolet S10 Blazer, N/A
• Fits 1982-1986 GMC S15, N/A
• Fits 1983-1986 GMC S15 Jimmy, N/A

Product Details

Four Seasons 55457 is a hose assembly built for the A/C refrigerant discharge and suction circuit, using aluminum and rubber materials to match the routing and connection style found on the original equipment layout. The assembly includes female O-ring discharge and suction ends, a manifold, and the required O-rings and seal components listed for the part. It is specified for R134a refrigerant service and is an OE replacement for the listed Chevrolet and GMC compact truck and SUV platforms. This part cross-references Gates 34805 for the same application.

Common A/C Problems This Part Can Address

• Refrigerant loss from cracked or deteriorated hose sections
• Leaks at worn O-ring sealing points
• Damaged discharge or suction line connections
• Reduced A/C performance caused by compromised hose routing
• Service replacement for aging factory HVAC hose assemblies

Installation Notes and Tips

Verify the vehicle’s A/C line routing, end style, and refrigerant system before installation. This assembly is listed without a service port, switch port, bracket, muffler, or fittings, so confirm the existing system configuration matches the part before removal. Replace sealing surfaces as needed and evacuate and recharge the system according to proper HVAC service procedures after installation.

Quality Assurance

Four Seasons supplies OE replacement HVAC components for automotive air conditioning service. Part number 55457 is built to match the specified hose assembly application for the listed Chevrolet and GMC models.