Genuine OEM Nissan Engine Coolant Hose, part number 21306BV83E. This hose is a critical component of the engine cooling system, designed to transport coolant between the engine and radiator. It is positioned within the engine bay, connecting various cooling system components. Manufactured from durable, heat-resistant rubber to withstand high temperatures and pressures. Genuine OEM hoses are engineered for precise fitment and long-term reliability, preventing leaks and ensuring optimal engine temperature.