$129 Tracked Articulated Tractor 3D model by 3D-Horse. Available on CGTrader with 1079043 polys and 1131275 vertices. Geometry: Polygon mesh. Check it out on CGHub.
OBJ (OBJ, filesize: 54.4 MB), 3DS (3D Studio, filesize: 25.2 MB), C4D (Cinema 4D, filesize: 20.3 MB), MAX (Autodesk 3ds Max, filesize: 60.6 MB), LWO (Lightwave, filesize: 23.5 MB), MA (Autodesk Maya, filesize: 38.6 MB), HRC (Autodesk Softimage, filesize: 28.3 MB), FBX (Autodesk FBX, filesize: 58.5 MB)