first ISX engine I know nothing about it any help out there

[trucker1975]

hello I'm looking at buying a 2007 mack CL733 axle heavy spec truck with a isx 15 engine in it. I know little to nothing about this motor such as over haul cost longevity or durability of it I'm not sure if it will hold up to the type of service that I intend for it to do nine axle trailer 210 to 215 gross any help is appreciated or opinions at least have a great day