Genuine OEM Nissan Engine Coolant Hose, part number 213064BB0C. This hose is a critical component of the engine's cooling system, responsible for transporting coolant between the engine and radiator or other cooling components. It is constructed from high-quality, heat-resistant rubber to ensure durability and prevent leaks under high temperatures and pressures. Genuine OEM hoses are designed with the correct internal diameter and routing for optimal coolant flow and system integrity.