This specific 3D model, "Diesel locomotive 3D model Low-poly 3D model purchase", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
Usage of this 3d asset is subject to the "Unknown license" agreement.
BLEND (Blender, filesize: 337 MB), OBJ (OBJ, filesize: 5.31 MB), FBX (Autodesk FBX, filesize: 9.37 MB), MAX (Autodesk 3ds Max, filesize: 40.9 MB), TEXTURES (Textures, filesize: 346 MB), DAE (Collada, filesize: 160 MB)