Global Parts 4811580 A/C Hose Assembly

Global Parts 4811580 A/C Hose Assembly

Global Parts 4811580 is an A/C hose assembly for rear air conditioning systems on select Oldsmobile, Pontiac, and Pontiac minivans. It follows the suction and discharge hose application used in HVAC refrigerant routing and is built for direct replacement service on listed vehicles.

Key Features

• A/C hose assembly for HVAC refrigerant flow routing
• Fits rear AC compatible applications on select Oldsmobile Silhouette and Pontiac Montana/Trans Sport models
• Used in suction, discharge, or manifold hose service depending on vehicle configuration
• Cross-references UAC HA10440C for the same application
• Part number 4811580 for catalog and service matching

Application Details

This hose assembly is used in the air conditioning system to connect major HVAC components and maintain refrigerant movement through the circuit. On the listed vehicles, it serves rear AC compatible hose assembly applications for 1997-1999 Oldsmobile Silhouette, 1999 Pontiac Montana, and 1997-1998 Pontiac Trans Sport. If you are searching for a 1997-1999 Oldsmobile Silhouette rear AC hose assembly or a 1997-1998 Pontiac Trans Sport A/C hose assembly, 4811580 is the catalog reference to verify.

Common Issues It May Address

• Refrigerant leakage from a damaged hose assembly
• Loss of rear air conditioning performance
• Cracked, worn, or deteriorated A/C hose routing
• Improper refrigerant transfer between compressor, condenser, and evaporator circuits

Installation Notes

Confirm the vehicle’s rear AC configuration and compare the original hose routing, end connections, and service layout before installation. Recover refrigerant properly, inspect mating seals and related HVAC components, and verify system operation after evacuation and recharge. Use the vehicle fitment data to confirm 1997-1999 Oldsmobile Silhouette, 1999 Pontiac Montana, or 1997-1998 Pontiac Trans Sport application coverage before ordering.

Quality Assurance

Global Parts supplies HVAC service components for listed vehicle applications, and part number 4811580 is cataloged against confirmed interchange references including UAC HA10440C and Dorman HELP 56659.