The XW class were the first modern grain hopper built for WA, the first entering service in 1972. 205 were built between then and 1981, followed by another 60 in 1983-84 to an improved design. When improved XWA wagons first appeared in 1983, a programme began to upgrade the 205 earlier XW class to this standard. A variety of other class codes were also applied to these wagons over subsequent years. 45 were converted to standard gauge in 2011 for use in NSW as AGWF class. All others were stored due to the loss of CBH grain transport in late 2012, and were sold for scrap in June 2014.
45 former Westrail XW class grain hoppers have migrated to NSW for grain operations with ARG/QRN. The wagons are now coded AGWF and have retained their original numbers. The oldest wagon dates back to 1972, where as the newest wagon (former XWB) dates from 1984. Most are fitted with blue painted couplers, which are purchased from Fletchers in SA. The blue paint is simply a marketing colour from Fletchers and not safety or operationally related. CFCLA have fitted a lot of these couplers to intermodal rollingstock. The wagons are fitted with a WF triple valve, and a combined unit reservoir. They are also fitted with a relay valve, making them a 'relay braked' wagons. They are fitted with a main reservoir but this is only for the operation of the roof lid. The main reservoir does not charge the combined reservoir and as such are not 'two piped' wagons, and operations are restricted on the Illawarra Mountain.
Note: These wagons will only work in TRS19 due to features only available in TRS19. No assistance will be provided if attempted to be used in TANE or earlier trainz versions.