$129 Combine Harvester 3D model by 3D-Horse. Available on CGTrader with 1253257 polys and 1283085 vertices. Geometry: Polygon mesh. Check it out on CGHub.
OBJ (OBJ, filesize: 65 MB), 3DS (3D Studio, filesize: 28 MB), MAX (Autodesk 3ds Max, filesize: 72.3 MB), MA (Autodesk Maya, filesize: 51.2 MB), HRC (Autodesk Softimage, filesize: 34.7 MB), LWO (Lightwave, filesize: 26.8 MB), C4D (Cinema 4D, filesize: 24.2 MB)