ACDelco 42455617 Radiator Surge Tank Outlet Hose

The ACDelco 42455617 is a genuine GM radiator surge tank outlet hose designed to maintain proper coolant flow between the surge tank and radiator system. This OE-quality hose is engineered to withstand the high temperatures and pressures of modern cooling systems while resisting degradation from coolant chemicals and engine heat.

Key Features:

• Genuine ACDelco OE replacement part ensures exact fit and function
• Durable rubber construction designed for long-term reliability
• Precision-molded to match original equipment specifications
• Resistant to coolant chemicals, heat, and pressure cycling
• Direct replacement for worn or damaged surge tank outlet hoses

This hose assembly connects the radiator surge tank (also known as a coolant recovery tank or overflow reservoir) to the cooling system, allowing coolant to expand and contract during normal engine temperature cycles. Regular inspection and replacement of cooling system hoses helps prevent coolant leaks and potential engine overheating.