1999 Detroit Series 60 12.7 ENGINE DDEC-4 NON EGR RECENT OVERHAULED 153K MILES Posted on November 21, 2023 by admin Engine was overhauled in October 2018. Detroit Series 60 12.7L DDEC-4 NON EGR ENGINE. Current mileage on engine since overhaul 153,643 miles. Model: Series 60 12.7 liter DDEC-4 (DDEC-IV) NON-EGR.