The Pittsburgh and Lake Erie class A-2a was a class of seven 2-8-4 "Berkshire" type steam locomotives built by American Locomotive Company (ALCO) in Schenectady, New York for the Pittsburgh and Lake Erie Railroad (P&LE) in 1948. They were also the last steam locomotives to be built by ALCO.
In 1948, the Pittsburgh and Lake Erie Railroad (P&LE) purchased seven 2-8-4 "Berkshire" type steam locomotives from the American Locomotive Company (ALCO) of Schenectady New York and designated as the class A-2a and assigned road numbers 9400 through 9406. The tenders were built by Lima and carried of coal.
Delivered between May and June 1948, the class had a short life and were the last steam locomotives ever produced by ALCO. Nos. 9400 through 9406 were retired in August 1956 and all of them were scrapped in 1957.