[2] All were included in the sale of Westrail to Australian Railroad Group in December 2000, the State Government having bought out the leases shortly before.

As part of a policy to drop letter classifications in favour of a numeric system based on horsepower, they became the 2300 Class.

[2] In December 2017, CBH Group purchased 10 units from Aurizon (DBZ2301-2308, 2312-2313) for use on their wheat train services, operated by Watco Australia at the time.

In 2023, all CBH owned locomotives were stored pending shipping to South Africa before the sale fell through just two days before they were due to leave.

One year later, Watco had purchased the units from CBH and have transferred them from Beverley to the Wheatbelt Heritage Rail Centre in Minnivale.