Southern Pacific 2472 is a P-8 Class 4-6-2 heavy "Pacific" type steam locomotive built by the Baldwin Locomotive Works for Southern Pacific Railroad (SP) in 1921. SP No. 2472 is one of three surviving Southern Pacific P-8 class 4-6-2 Pacific locomotives, the other two bring Nos. 2467 and 2479. The 4-6-2 designation means it has four leading wheels, six driving wheels, and two trailing wheels.