Industrial Self Priming Water Pump Low-poly (Polygon mesh 3D model) is available on CGTrader for $15. Original author: Banism. Specs: 4790 polys, 5000 verts.
OBJ (OBJ, filesize: 1.83 MB), DAE (Collada, filesize: 2.41 MB), 3DS (3D Studio, filesize: 1.45 MB), BLEND (Blender, filesize: 2.1 MB), FBX (Autodesk FBX, filesize: 1.61 MB)