Genuine OEM Nissan Engine Cover Grommet, part number 16557EB70B. This grommet serves as a mounting point and vibration dampener for the engine cover. It ensures the cover is securely attached to the engine assembly while minimizing noise and vibration transfer. The part is located where the engine cover attaches to the engine block or other components. Constructed from durable rubber, this grommet is designed to withstand engine bay temperatures and resist degradation over time. Genuine OEM grommets provide the correct fit and material properties for reliable and quiet engine cover mounting.