ISX egr tuneup vs X15 egr tuneup

[Waterloo]

Yep, pretty much identical, sensors, etc. Same block as the 2350, mainly internal changes were made, they did take the fuel pump out of the oil circuit and of course the new one piece emission SCR setup. I would say the SCR setup is the one thing you would need to learn about as far as maintaining, as that has changed over the previous years. The fuel pumps are still an item of concern, they should be rebuilt prior to reaching the 400,000 mile mark, no change there.