HO P3 NW2 Diesel PRR #9163/grn DC/DCC..

The EMD
SW7 was the third diesel locomotive switcher the builder produced in
the SW series and the first new design following World War II in the
late 1940s (EMD stopped production on new models until after the war,
mostly due to war restrictions ongoing at the time). Outwardly, the SW7
was virtually identical to future SW models and related NW designs of
the time although it did differ slightly from the earlier SW1 in that
it featured a more streamlined hood without the step in front of the
nose. The most striking difference between the SW1 and SW7 was the
latters additional horsepower, which was twice that of the former. As
with many early EMD switcher locomotive models, the SW7 continues to
see use today in various settings from industrial and shortline
operations to tourist and excursion trains.