$4.99 Trent Jet Engine 3D model by foundry3d. Available on CGTrader with 400000 polys and 13000 vertices. Geometry: Polygon mesh. Check it out on CGHub.
Native Formats: BLEND (Blender, filesize: 85.2 MB)
Exchange Formats: OBJ (OBJ, filesize: 223 MB), FBX (Autodesk FBX, filesize: 66.7 MB), DAE (Collada, filesize: 147 MB), STL (Stereolithography, filesize: 149 MB)