Genuine OEM Nissan Fuel Rail Pipe Gasket, part number 166278H800. This gasket is essential for sealing the connection between the fuel rail and the pipe, preventing fuel leaks and ensuring proper system pressure. It is located in the fuel system assembly. Crafted from durable materials to withstand fuel and pressure, this gasket maintains its integrity over time. Genuine OEM parts are manufactured to precise tolerances, ensuring a perfect fit and reliable sealing, critical for the high-pressure fuel system.