The Xplorer is a class of diesel multiple unit trains built by ABB. Initially entering service in October 1993 with CountryLink, the Xplorers are mechanically identical to the Endeavour railcars, though feature a higher level of passenger amenity. All 23 carriages were built in the Dandenong rolling stock factory. The Xplorers currently operate under NSW TrainLink, running on the regional Main North, Main Western and Main Southern lines throughout New South Wales.

CountryLink was a passenger rail and road service brand that operated in regional areas of New South Wales, and to and from Canberra, Brisbane and Melbourne. Originally created as a business unit of the State Rail Authority of New South Wales, it later became a subsidiary of RailCorp. CountryLink operated rail services using XPT and Xplorer rolling stock, with connecting coach services operated under contract by private operators.