Genuine OEM Mazda Hose, part number DNG369921. This is the front sunroof drain hose. It is designed to channel water that collects around the sunroof seal away from the vehicle's interior, preventing leaks and water damage. The hose connects to the sunroof drainage system and routes water to the exterior of the vehicle. Proper functioning of this hose is essential for maintaining a dry cabin. Genuine OEM hoses are made from durable materials to resist degradation and ensure reliable water drainage.