A very basic, low-poly model of a diesel engine without much detail. No textures, just materials.
Modeled in Blender 2.78c
File formats provided:
.blend.obj/.mtl.dae.fbx
OBJ (OBJ, filesize: 197 KB), BLEND (Blender, filesize: 847 KB), DAE (Collada, filesize: 230 KB), FBX (Autodesk FBX, filesize: 122 KB)