$129 Doosan DX140LCR-5 excavator 3D model by Polygate2. Available on CGTrader with 1079664 polys and 1104500 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 34.5 MB), 3DS (3D Studio, filesize: 8.48 MB), MA (Autodesk Maya, filesize: 71.4 MB), MEL (Maya Mel Script, filesize: 71.4 MB), C4D (Cinema 4D, filesize: 32.3 MB), FBX (Autodesk FBX, filesize: 58.1 MB), MAX (Autodesk 3ds Max, filesize: 180 MB), BLEND (Blender, filesize: 50.2 MB)