Check out ELECTRIC PLUNGER PUMP MOTOR SPRAYER PRESSURE WATER JET CAR WASH 3D model on CGTrader for $23.9. High-quality mesh by SURF3D: 594695 polys, 502115 vertices.
STL (Stereolithography, filesize: 28.4 MB), OBJ (OBJ, filesize: 51.7 MB), BLEND (Blender, filesize: 51.6 MB), 3DM (Rhinoceros 3D, filesize: 131 MB), 3DS (3D Studio, filesize: 15.1 MB), FBX (Autodesk FBX, filesize: 15.9 MB), DWG (AutoCAD, filesize: 16.7 MB), MAX (Autodesk 3ds Max, filesize: 118 MB), IGE (IGES, filesize: 90.7 MB), SAT (3D ACIS, filesize: 37.8 MB), SKP (Sketchup, filesize: 507 MB), STP (STEP, filesize: 36.7 MB), OTHER (Other, filesize: 36.7 MB)