I disagree...all of the coolers are right there in easy to get to places, I'll gladly drop the bottom of that oil pan out to get the last bolt of that oil cooler out vice what you have to go through on a 6.4 or 6.0, the EGR valve pretty much comes right out with no seizure issues, getting the turbo out doesnt seem to be much of a chore, with the exception of the small clamp in the back, don't know, haven't tried it yet in the vehicle....the HP pump shouldn't be that hard to get to.... compared to a 6.4 this motor should be easy to work on. The one thing I was not impressed with was the excessive use of plastic fittings tied into the fuel lines...like at the injectors and that small T coming off the secondary fuel filter line...just my 2 cents...