Meanwhile, the very similarly designed, single-engined DSJ class, has a cab that is offset from the centre.

The DSG class shunters were built in four batches from 1981 to 1983.

[3] The locomotives have seen widespread use throughout New Zealand, particularly in larger yards and for port traffic.

[3] They also see service on sections of mainline, performing regional shunt duties in a number of areas.

All DSG class locomotives are in the KiwiRail Mark 2 colour scheme (Vertical separations of main colours on car body).