The MP15AC is similar to an MP15DC with the addition of an AR10 main alternator vs a D32 main generator. Along with updated control system functionality and Exane wiring and cabling, the MP15AC is arguably the most modern switcher produced to date.
Tractive Effort @ Min. Cont. Speed
46,970 lbs. @ 9.3 mph
Length Over Coupler Pulling Faces
48 feet, 8 inches
Distance between Bolster Centers
24 feet, 2 inches
Truck-Rigid Wheel Base
Width Over Grab Irons
10 feet, ¾ inch
Height Above Rails
1,100 to 1,400 gallons
12-645E, 12 cylinder roots-blown, GM Diesel
Four D77/78 direct current
62:15 gear ratio
Total loaded weight on rails average 248,000 lbs.