The EMD 710 is a line of diesel engines built by Electro-Motive Diesel (previously General Motors' Electro-Motive Division). The 710 series largely replaced the earlier EMD 645 series. The EMD 710 is a large two-stroke diesel engine that has a displacement per cylinder. Since its introduction, EMD has continually upgraded the 710G diesel engine. Power output has increased from on 1984's 16-710G3A to 4300 horsepower (as of 2006) on the 16-710G3C-T2.
Over the production span of certain locomotive models upgraded engine models have been fitted when they became available. For example an early 1994-built SD70MAC had 16-710G3B, where an SD70MAC built in 2003 would have a 16-710G3C-T1.
Like most EMD engines, the 710G is also sold for stationary and marine use. It is available in V-8, V-12, V-16 and V-20