brake wheel cylinder 3D model is available on CGTrader for $2. Original author: SuryaAlexander. Specs: 1500000 polys, 1500000 verts.
STL (Stereolithography, filesize: 1.89 MB), OBJ (OBJ, filesize: 6.04 MB), OTHER (Other, filesize: 3.24 MB), BLEND (Blender, filesize: 3.24 MB), FBX (Autodesk FBX, filesize: 2.01 MB)