ACDelco 84339431 Heater Water Bypass Outlet Hose

The ACDelco 84339431 is a genuine GM heater water bypass outlet hose designed to route heated coolant from the engine to the heating system and back through the bypass circuit. This factory-molded hose is engineered to fit precisely in today's compact engine compartments, ensuring proper coolant flow for optimal cabin heating performance.

Key Features:

• Genuine GM Original Equipment part for reliable fit and function
• Constructed from a proprietary EPDM rubber blend for superior durability and flexibility
• Temperature rated from -40°F to 275°F for all-weather performance
• Resists electrochemical degradation (ECD), the leading cause of coolant hose failure
• Precision-molded to GM Original Equipment specifications
• Factory-engineered design ensures proper sealing and routing

This genuine ACDelco hose is designed, engineered, and tested to rigorous GM standards, providing the quality and dependability expected from factory original equipment. Suitable for coolant and water applications in GM vehicles requiring this specific bypass outlet hose configuration.