In 2023, NRE manufactured a total of five six-axle freight locomotives for the Australian railway company “El Zorro”. These each have six overhauled D78 traction motors from EMD, which are powered by three Cummins QSK19C, each with around 750 hp. When the first two locomotives were on their way to Australia, El Zorro was liquidated. These two were sold to Bowmans Rail after interim storage at Port Kembla. One of the three locomotives remaining in the USA was delivered to Caraminer S.A. in Uruguay in 2021. 