Check out Manual Hydraulic Pump 3D model on CGTrader for $25. High-quality mesh by vimalgeorge.
STL (Stereolithography, filesize: 8.57 MB), OBJ (OBJ, filesize: 19.5 MB), FBX (Autodesk FBX, filesize: 5.47 MB), IGE (IGES, filesize: 4.71 MB), STP (STEP, filesize: 2.4 MB)