$79 Track Type Tractor D8T 3D model by berkekose. Available on CGTrader with 849208 polys and 844855 vertices. Check it out on CGHub.
STL (Stereolithography, filesize: 17.5 MB), OBJ (OBJ, filesize: 14.8 MB), FBX (Autodesk FBX, filesize: 15.9 MB), MAX (Autodesk 3ds Max, filesize: 26.5 MB), JPG (JPG, filesize: 13.2 MB), 3DS (3D Studio, filesize: 1.91 MB)