Tractor with Seed Drill 3D model 11 (Polygon mesh 3D model) is available on CGTrader for $169. Original author: 3D-Horse. Specs: 3084173 polys, 3153513 verts.
OBJ (OBJ, filesize: 91.1 MB), 3DS (3D Studio, filesize: 49 MB), C4D (Cinema 4D, filesize: 34 MB), MAX (Autodesk 3ds Max, filesize: 116 MB), LWO (Lightwave, filesize: 44.9 MB), MA (Autodesk Maya, filesize: 82 MB), HRC (Autodesk Softimage, filesize: 55.7 MB)