NSW TrainLink fleet

The NSW TrainLink fleet of trains serves the areas outside Sydney, Australia, mainly interurban and interstate lines. The NSW TrainLink fleet consists of both diesel and electric traction, with the oldest of the fleet being the V sets and the youngest being the H sets.

The network's interurban services are designed with extra facilities (such as armrests and on-board toilets) to cater for longer distance journeys connecting Sydney with regional centres. All interurban trains are air-conditioned.

V sets (alternately Double Deck Interurban, or DDIU, rollingstock) form the backbone of NSW TrainLink's interurban services. They were manufactured by Comeng and were introduced between 1970 and 1989. They run in four or eight car configurations containing toilets on the Central Coast & Newcastle Line and the Blue Mountains Line to Lithgow.

H sets (nicknamed OSCARs, for Outer Suburban Cars) were introduced from 2006 and operate as 4 or 8 car sets on the Blue Mountains Line, Central Coast & Newcastle Line and South Coast Line. The OSCARs were initially ordered to replace the G set Tangaras on outer suburban runs, however in addition to this they have also been used to replace some of the older interurban V sets which have been retired . They contain toilets and feature suburban style 3x2 seating and perform some suburban only work in addition to their main outer suburban duties.

In May 2014, the NSW Government announced its intention to purchase new trains, with a fleet of around 520 new carriages for the NSW TrainLink intercity network expected to begin service in 2019. These trains would replace all V Sets and at least some original quiet carriage-based, OSCARS on intercity services. The displaced OSCAR trains would then be re-allocated to suburban services and used to replace the last remaining non-air-conditioned S Sets of the Sydney Trains fleet while the entire V Set fleet would be withdrawn.

In August 2016 the contract to supply new intercity trains was awarded to RailConnect, a joint venture of Hyundai Rotem, Mitsubishi Electric and UGL Rail.

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