In North American railroad terminology, a cab unit is a railroad locomotive with its own cab and controls.
Three body styles of diesel locomotive: cab unit (front), hood unit, and flat-nose (rear). These locomotives are operated by Pacific National in Australia.
The EMD FP7 is a 1,500 horsepower, B-B dual-service passenger and freight-hauling diesel locomotive produced between June 1949 and December 1953 by General Motors' Electro-Motive Division and General
Western Pacific 805-A, an EMD FP7, pulls the California Zephyr in March 1970
AMTK No. 113, formerly SP No. 6449, leading two EMD SDP40Fs with the San Francisco Zephyr at Yuba Gap, 1975
Reading 902 at Steamtown National Historic Site