This portable rebuilt Morbark 6600 horizontal grinder on tracks is powered by a CAT diesel engine. It only has approximately 752 hours of use since the machine and engine rebuild. All new wiring, new bed chains, new idler, and more. This grinder will work great for processing pallets, brush, trees, stumps, green waste, storm debris, and much more. If you are looking for quality high production this is the machine for you! Call today for more details!!