The Pierburg Water Pump Kit - 11518635090KT is a complete kit that includes a water pump and all necessary components for installation. The water pump is a crucial component in a vehicle's cooling system, responsible for circulating coolant and maintaining the engine's temperature. This kit is specifically designed for use in various BMW models and is a high-quality, OEM replacement part. It is durable and reliable, ensuring proper functioning of the cooling system and preventing potential engine damage. This kit is a cost-effective solution for replacing a faulty or worn-out water pump in your vehicle.