4100 on NJ Transit was built in October 1968. It was originally built for the Central of New Jersey Railroad as their number 3681. Been in revenue service for over 53 years and is now on the Hoboken Division.
Photos of the Pascack Valley Line. This railroad was built as the New Jersey and New York RR, falling under the control of Erie, Erie Lackawanna, Conrail and NJDOT before present passenger operator New Jersey Transit and freight carrier Norfolk Southern.