Medium-High Poly Style Editing of the model found Below. The model was Exploded in Surfaces and rejoined to assign materials. Styling was done for rendering, nothing to do with the actual engine. Rhino files (Nurbs) available upon request. Note: This Model uses SSAO and SSR (Reflections and Occlusion) and may not display properly in some devices (mobiles usually).
Source:
https://grabcad.com/library/catterpilar-c32-1417kw-2300-rpm-1
Original file, in the link above. It is in STEP/NURBS Format, not Mesh.