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| DEB Railcar | |
|---|---|
 HPF 954 in storage at Broadmeadow Locomotive Depot | |
| Stock type | Diesel Multiple Unit |
| In service | 1951–1994 |
| Manufacturer | New South Wales Government Railways |
| Built at | Chullora Railway Workshops |
| Constructed | 1951–1960 |
| Number built | 18 power cars, 18 trailer cars |
| Number in service | 0 |
| Fleet numbers | 901–910, 951–959, 351–353, 751–753, 801–803, 851–857, 861–862 |
| Specifications | |
| Car body construction | Aluminium (with steel underframe) |
| Car length | 18.67 m (61 ft 3 in) power cars, 17.83 m (58 ft 6 in) trailer cars |
| Width | 2,970 mm (9 ft 8+7⁄8 in) |
| Height | 3,920 mm (12 ft 10+3⁄8 in) |
| Maximum speed | 115 km/h (71 mph) |
| Prime mover(s) | Hercules DFXH-F / GM Detroit Diesel 6/110 / Cummins NTA-855-R4 |
| Engine type | Diesels, 240 bhp, 250 bhp, 335 bhp |
| Power output | 480 hp (360 kW) (240 hp or 180 kW x 2); 500 hp (370 kW) (250 hp or 190 kW x 2); 670 hp (500 kW) (335 hp or 250 kW x 2) |
| Transmission | Lockup torque converter |
| Braking system(s) | S.E.M. electro-pneumatic straight air with emergency feature, handbrake |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
The 900/800 class railcars (or DEB sets) were diesel multiple units built by the New South Wales Government Railways between November 1951 and November 1960.