A diesel multiple unit or DMU is a multiple-unit train powered by on-board diesel engines. A DMU requires no separate locomotive, as the engines are incorporated into one or more of the carriages. Diesel-powered single-unit railcars are also generally classed as DMUs. Diesel-powered units may be further classified by their transmission type: diesel–mechanical DMMU, diesel–hydraulic DHMU, or diesel–electric DEMU.
The T sets, also referred to as the Tangara trains, are a class of electric multiple units that currently operate on the Sydney Trains network. Built by A Goninan & Co, the sets entered service between 1988 and 1995, initially under the State Rail Authority and later on CityRail. The T sets were built as "third-generation" trains for Sydney's rail fleet, coinciding with the final withdrawals of the "Red Rattler" sets from service in the late 1980s and early 1990s. The Tangaras were initially built as two classes; the long-distance G sets and the suburban T sets, before being merged after successive refurbishments.
The South Coast Line (SCO) is an intercity rail service that services the Illawarra region of New South Wales, Australia. The service runs from Central, and runs the entire length of the eponymous South Coast railway line to Bomaderry. The service also runs along the Eastern Suburbs railway line at peak hours and the Port Kembla railway line to Port Kembla. It is operated with Sydney Trains H sets and T sets, with Endeavour railcars operating the service on the non-electrified line between Kiama and Bomaderry.
The Hunter Line (HUN) is an intercity rail service running from Newcastle, with two branches to Dungog and Scone in the Hunter Region of New South Wales, Australia. It operates on the Newcastle, Main North and North Coast lines.
The Australind is a currently suspended rural passenger train service in Western Australia operated by Transwa on the South Western Railway between Perth and Bunbury.
The Endeavour Railcars are a class of diesel multiple units (DMU) operated by NSW TrainLink on passenger rail services in New South Wales, Australia on the Hunter, Blue Mountains, Southern Highlands and South Coast lines. They are mechanically identical to the Xplorers, but are fitted out for shorter travel distances. All 30 carriages were built by ABB's Dandenong rolling stock factory.
The New South Wales H sets, also referred to as the OSCAR trains, are a class of electric multiple units (EMU) currently operated by Sydney Trains on its intercity routes and some Sydney suburban routes. Built by UGL Rail in Broadmeadow, the H sets first entered service under the CityRail brand in December 2006, with the last in December 2012. Their introduction allowed for the retirement of some second-class V set carriages. As long-distance trains, the H sets share a similar overall layout and design to the previous Tangara G sets. Currently operating as 55 four-carriage sets, the H sets now operate between Sydney, Central Coast and Newcastle and between Sydney and the South Coast.
The 620/720 class railcars are a class of diesel-hydraulic multiple units (DHMU) built by the New South Wales Government Railways and operated from 1961 until 2007.
The 2000 class and 2100 class were diesel multiple units that operated on the Adelaide rail network between 1980 and 2015. They were built by Comeng in Granville, New South Wales in 1979–1980. As of 2024, six railcars have been preserved while the rest have been scrapped.
The railways of New South Wales, Australia, use a large variety of passenger and freight rolling stock. The first railway in Sydney was opened in 1855 between Sydney and Granville, now a suburb of Sydney but then a major agricultural centre. The railway formed the basis of the New South Wales Government Railways. Passenger and freight services were operated from the beginning. By 1880, there was a half hourly service to Homebush.
The Xplorer is a class of diesel multiple unit (DMU) 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.
The Silver City Comet was a train service that operated from September 1937 until November 1989 between Parkes and Broken Hill in western New South Wales. It was the first air-conditioned train in Australia.
The DRC was a class of railmotor operated by the Victorian Railways on its country rail network in Victoria, Australia. The cars were built by Tulloch Limited in New South Wales, and featured aluminium and steel construction, air-conditioning, and twin diesel engines with hydraulic transmissions.
The 900/800 class railcars were diesel multiple units built by the New South Wales Government Railways between November 1951 and November 1960.
The 600/700 class railcars are a class of diesel multiple unit built by the New South Wales Government Railways. They were built to operate on branch lines from 1949 with low traffic volumes later being transferred to Newcastle and Wollongong to operate suburban services until withdrawn in 1994. However, one 600 class railcar was converted to solar operation for use on the Byron Bay Train service. The upgraded train entered service on 16 December 2017 and is believed to be the world's first solar-powered train.
The 660 & 760 class railcars are a class of diesel multiple unit train built by the New South Wales Government Railways (NSWGR) and used in the latter stages of their life by CityRail, primarily on its Hunter Valley line. The trains have since been phased out in favour of the newer Endeavour railcar model. The 660/760 railcars were converted by NSWGR from earlier 600/700 Class vehicles between 1973 and 1975.
The 1100 class railcar or Budd railcar were a type of diesel railcar built by Commonwealth Engineering for the Department of Railways New South Wales in 1961. They primarily operated on the South Coast Daylight Express until withdrawn in 1993.
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 WAGR WCA class railcars and WCE class trailers were built by Comeng, Granville for the Western Australian Government Railways in 1971 to operate the new Prospector service between East Perth and Kalgoorlie. At the time of their construction the WCA class units were the longest and fastest diesel railcars in the world.
The New South Wales D sets, also referred to as the Mariyung trains, are a class of electric multiple units (EMU) being built to replace Sydney Trains's Intercity EMU fleet. The trains will operate on services from Sydney to Newcastle, Lithgow and Kiama, allowing the retirement of Sydney Trains's V set fleet, and freeing the H set (OSCAR) fleet for reallocation to Sydney suburban services.
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