The product is a genuine Eberspacher Espar 12V fuel pump (part number 22451704) designed for the Hydronic D5WS heater. Made in Germany, this fuel pump is a crucial component for the proper functioning of the heater system. It is specifically designed for commercial trucks and is an essential part of the engine's components. The Eberspacher Espar brand is known for its high-quality and reliable products, making this fuel pump a trustworthy choice for maintenance and repair of the heating system in commercial vehicles.