Engines | Mounts, , (USED) 2005 Caterpillar C15 Acert Diesel Engine (Twin Turbo), Serial # MXS05675, 475HP Rated, MAX ADV 550HP, Test Run 8-10-15, Runs Perfect!!! Fully Inspected!! Low Miles. Visit jjrebuilders.com for more information on this motor or any other diesel engine you may be looking for. 1-800-971-3019. INV # 002590