Pennsylvania Railroad class D14

Class D14 on the Pennsylvania Railroad was a type of steam locomotive with a 4-4-0 wheel arrangement in the Whyte notation. They were originally designated class P in the PRR's pre-1895 classification scheme. Twenty-two locomotives were built at the PRR's Altoona Works (now owned by Norfolk Southern); six in 1893 with 78 in driving wheels, and sixteen in 1894 with 80 in drivers, classified D14a. Later, all sixteen class D14a were rebuilt to class D14b with 68 in drivers for secondary service after they were replaced in top-flight express service, while three of the six class D14 were similarly rebuilt to class D14c.

Withdrawal
All were withdrawn and scrapped between 1905 and 1955.