The 421 class was a development of the 42 class. They were simmilar in design but featured a flat second cab and one streamlined cab and a number of other design revisions. 42101 is under restoration by it's private owner to operating condition. 42106 was stripped out and modifications were started to fit a 3,000hp EMD engine however the project stopped in the mid 2,000's and the loco has been stored ever since.
Drive Type: Diesel Electric - DC
Engine: EMD 16-567C
Generator: EMD D32F
Traction Motors: EMD D67
Horse Power: 1,950hp
Weight: 110t
Max rated speed: 113km/h
Builders Model: AJ16C