The GP20D is a four-axle B-B switcher built by MotivePower Industries and Electro-Motive Diesel. It is supplied with a Caterpillar 3516 (called a 16-170B20-T2 by EMD) V16 prime mover which develops a total power output of 2,000 horsepower (1,490 kW). To date, only 40 units have been produced by EMD, all of which were manufactured during June 2000. The GP20D is also a hood unit with lowered long and short hoods based on MotivePower Industries' earlier MP2000D locomotives. The changes between the MK2000D and the GP20D are primarily in the control electronics, making them easier to use than the older model.

Blue Engines, Market Street, Houston, Texas 0403091059.jpg
Two EMD GP20D's in the CEFX scheme. Note that both hoods are lowered.
Type and origin
Power typeDiesel-electric
BuilderMotivePower Industries (MPI) and Electro-Motive Diesel (EMD)
Build dateJune 2000 – August 2001
Total produced40
Gauge4 ft 8 12 in (1,435 mm) standard gauge
Fuel capacity2,550 US gal (9,700 l; 2,120 imp gal)[1]
Prime moverCaterpillar 3516
(EMD 16-170B20-T2)[1][2]
Engine typeFour-stroke V16 fuel injected[1] diesel
Loco brakeDynamic
Performance figures
Maximum speed70 mph (113 km/h)[3]
Power output2,000 hp (1,490 kW)
Tractive effort65,000 lbf (290 kN) continuous
97,000 lbf (430 kN) starting
38,000 lbf (170 kN) braking

Although the GP20D is marketed as a switcher, it has a top speed of 70 mph (113 km/h), and is usually fitted with dynamic brakes, making it suitable for road switcher duties as well. The similar appearing EMD GP15D does not have dynamic brakes.

Original BuyersEdit

Railroad Quantity Road numbers Notes
CIT Group/Capital Finance
Total 40[4]

See alsoEdit


  1. ^ a b c "EMD: GP20D Features". Archived from the original on March 14, 2006. Retrieved 2008-08-13.
  2. ^ Vantuono, William C. (2002). "Sipping, not slurping: how much fuel efficiency can be squeezed out of a locomotive? Railroads and suppliers have devised innovative ways to reach what has been an elusive goal". Railway Age.
  3. ^ "GP20D". Retrieved 2008-08-13.
  4. ^ EMD GP20D Order List

External linksEdit

  Media related to EMD GP20D locomotives at Wikimedia Commons