8.3 cummins,8LL transmission,220,000 miles on motor clutch and turbo.motor was changed in 2013 before I bought it.truck has698,610 miles.has new tranny cooler,new altenator,6 new injectors in October 2015.new steer tires was running everyday till 2 weeks ago bought new truck.runs good.dual 70 gallon fuel tanks.28 ft. century bed two 8,000lbs. winches.two toolboxes.