The imported gear pump is a lightweight and compact pump, which has three types: in-line, distribution and single type. The imported gear pump requires a power source to run. The camshaft at the bottom of the imported gear pump is driven by the engine crank gear.

     An inlet gear pump proposes an inlet gear pump having a housing made of an aluminum-containing material and a movable molding provided in the housing, wherein the movable molding is at least partially composed of a A sinterable, iron-based alloy material containing at least one austenite, and wherein the molded part made of a sinterable material has a thermal expansion coefficient of at least 60% of the thermal expansion coefficient of the housing.