| Leyland B21 | |
| Manufacturer: | Leyland |
| Production: | 1979–1985 |
| Assembly: | Workington, England |
| Body Style: | Single-deck |
| Floortype: | Step entrance |
| Engine: | Leyland 510 GM 6V71 |
| Transmission: | Allison HT740 Voith D851 |
| Related: | Leyland National |
| Predecessor: | Bristol RE |
The Leyland B21 was a bus chassis manufactured by Leyland between 1979 and 1985. The chassis was developed from the integral Leyland National and was designed for overseas markets,[1] [2] with its biggest market being Australia.
The B21 was assembled at Leyland's Workington factory, with some work additionally performed at the company's Bristol works.[1] [3]
In Australia, Transperth purchased 20[4] and Darwin Bus Service 18.[5] Other purchasers included Benders Busways, Delwood Coaches, Melbourne-Brighton Bus Lines, Nowra Coaches and Surfside Buslines. All of the Australian chassis were powered by the GM 6V71.[6] [7]
In Belgium, SNCV of Brussels purchased 25.[1] [8] Israeli operator Egged sought to import 150, but difficulties over financing saw the deal fall through.[9]
In the United Kingdom, Ipswich Buses purchased four and Ulsterbus six.[10]