2-8-8-2

Other equivalent classifications are: A similar wheel arrangemement exists for Garratt locomotives, but is referred to as 2-8-0+0-8-2 since both engine units swivel.

The next order for the type was from the Southern Pacific; these differed in being cab forward locomotives, so that the crew could have better visibility and breathing in the SP's long tunnels and snow sheds.

The 2-8-8-2 proved itself to be a capable hauler on mountain grades, enabling the replacement of several smaller locomotives and hauling longer trains than before.

When built, the 2-8-8-2s of the Western Pacific Railroad were among the most powerful steam locomotives in the world and formed the basis for the later 2-8-8-4 "Yellowstone" type engines used by the Duluth, Missabe and Iron Range.

The last compound Mallet locomotives to operate on major railroads in the United States were the 2-8-8-2 Y6b class of the Norfolk and Western Railway.