Genuine OEM Audi Fuel Rail, part number 0P2133315A. This critical component is responsible for distributing fuel from the fuel line to the engine's individual fuel injectors, ensuring consistent and precise fuel delivery for optimal combustion. It is typically mounted directly to the engine, above or alongside the cylinder head. Constructed from durable metal, it measures approximately 0.395m in length and weighs 1.2 kg. Choosing a genuine OEM fuel rail ensures exact fitment, proper fuel pressure regulation, and resistance to fuel system contaminants, crucial for engine longevity and performance.