M1851 (Ken Belcher)
MA1863 (Chris Stratton)
| Locomotive numbers: | M1851-1852 MA1861-1863 |
| Model Number: | GH700V (M) GH700 (MA) |
| Type | Diesel-Hydraulic |
| Introduced | 1972 (M) 1973 (MA) |
| Number in class | 2 (M) 3 (MA) |
| Manufacturer | Walkers |
| Gauge | Narrow |
| Axles | B-B |
| Length | 10.96 m |
| Mass | 53 t (M) 45 t (MA) |
| Engine | Cummins VTA1710L (M) Caterpillar D379B (MA) |
| Transmission | Voith L4R4U26 |
| Power | 485 kW / 650 HP |
| Tractive effort | ? / 109 kN |
| Speed | 53 / 10 km/h |
The two classes were used as shunters for Westrail's hump yard at
Forrestfield. Most have now been sold to sugar mills.
| Loco | Serial # | In Service | Comments |
| M1851 | 680 | 1/1972 | Sold to CSR Victoria Mill |
| M1852 | 681 | 1/1972 | Sold to CSR Victoria Mill |
| MA1861 | 713 | 6/1973 | Sold to CSR Plane Creek Mill |
| MA1862 | 714 | 6/1973 | Shunter at Transperth Railcar depot (Claisebrook) |
| MA1863 | 715 | 6/1973 | Sold to CSR Plane Creek Mill |