Check out IDEAL - Combine Harvesters - 4 Different Harvester Heads 4 in 1 3D Model Pack purchase 3D model on CGTrader for $229. High-quality mesh by markos3d.
STL (Stereolithography, filesize: 831 MB), OBJ (OBJ, filesize: 618 MB), 3DS (3D Studio, filesize: 245 MB), BLEND (Blender, filesize: 1.02 GB), C4D (Cinema 4D, filesize: 482 MB), FBX (Autodesk FBX, filesize: 491 MB), MAX (Autodesk 3ds Max, filesize: 325 MB), LWO (Lightwave, filesize: 1.03 GB), MA (Autodesk Maya, filesize: 282 MB), HRC (Autodesk Softimage, filesize: 977 MB)