This specific 3D model, "water pump 3D model 5", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
The licensing terms for this digital asset are governed by "Unknown license".
OBJ (OBJ, filesize: 539 KB), 3DS (3D Studio, filesize: 233 KB), ATL (Artlantis, filesize: 10.1 MB), DWG (AutoCAD, filesize: 702 KB), FBX (Autodesk FBX, filesize: 395 KB)