set of DT-75 rusted diesel tractor in 6 color variants iv7 Low-poly 3D model is available on CGTrader for $59. Original author: Flawlessnormals. Specs: 30868 polys, 22022 verts.
BLEND (Blender, filesize: 4.67 MB), OBJ (OBJ, filesize: 3.41 MB), FBX (Autodesk FBX, filesize: 487 MB), TBSCENE (Marmoset Toolbag, filesize: 72.4 MB), TEXTURES (Textures, filesize: 486 MB), PNG (PNG, filesize: 486 MB)