Thevenard, two versions of Clyde Engineering EMD JL22C model, class leader 1601, originally NJ 1 'Ben Chifley' serial 71-728, and NJ 6 serial 71-733, both built in 1971 at Clyde's Granville NSW workshops, started out on the Central Australia Railway for the Commonwealth Railways before being transferred to the Eyre Peninsula system in 1981, NJ 1 repainted and renumbered to 1601 in November 2004.