| New Zealand DM class locomotive |
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KiwiRail DM8029 hauling a freight train in 2025 |
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| Specifications |
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Configuration:
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| • UIC | Co′Co′ |
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| Gauge | 1,067 mm (3 ft 6 in) |
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| Length | 20.002 metres (65.62 ft) |
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| Width | 2.810 metres (9 ft 2.6 in) |
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| Loco weight | < 108t |
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| Fuel type | Diesel, HVO |
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| Fuel capacity | 6,500 litres (1,400 imp gal; 1,700 US gal) |
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| Prime mover | Caterpillar C175-16, Stage V |
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| Engine type | diesel engine |
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| Loco brake | Pneumatic; Dynamic: rheostatic; Bail-off feature |
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| Performance figures |
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| Maximum speed | 100 km/h (62 mph) |
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| Power output | 3,000 kilowatts (4,000 hp) |
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| Tractive effort | 415 kN (93,000 lbf) |
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| Career |
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| Number in class | 66 |
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| Delivered | 4 as of December 2025 |
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| Current owner | KiwiRail |
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The New Zealand DM class of 66 diesel-electric locomotives are currently under manufacture for New Zealand rail operator KiwiRail by Stadler Rail in Spain. The locomotives are expected to be introduced between 2025 and 2026. The first two locomotives arrived in October 2024 to commence testing and commissioning, with the first locomotive, DM8029, entering service on 21 July 2025.