| EMD 265H | |
|---|---|
| Overview | |
| Manufacturer | Electro-Motive Diesel |
| Also called | H-Engine |
| Layout | |
| Configuration | V12 and V16 |
| Displacement | 1,010 cubic inches (16,600 cm3) per cylinder |
| Cylinder bore | 265 millimetres (10.4 in) |
| Piston stroke | 300 millimetres (12 in) |
| Cylinder block material | Iron |
| Cylinder head material | Iron |
| Valvetrain | 4 valves per cylinder |
| Compression ratio | 15.3:1 |
| Combustion | |
| Turbocharger | two low-inertia turbochargers |
| Fuel system | Unit injector actuated by engine camshaft |
| Management | Electronic |
| Fuel type | Diesel |
| Oil system | Wet sump |
| Cooling system | Liquid-cooled |
| Output | |
| Power output | up to 4.7 MW (6,300 hp) for V16 engines; up to 3.52 MW (4,725 hp) for V12 engines. |
| Chronology | |
| Successor | EMD 1010 |
| EMD 1010J | |
|---|---|
| Overview | |
| Manufacturer | Electro-Motive Diesel |
| Also called | J-Engine |
| Layout | |
| Configuration | V12 |
| Displacement | 1,010 cubic inches (16,600 cm3) per cylinder |
| Cylinder bore | 265 millimetres (10.4 in) |
| Piston stroke | 300 millimetres (12 in) |
| Cylinder block material | Iron |
| Cylinder head material | Iron |
| Valvetrain | 4 valves per cylinder |
| Compression ratio | 15.3:1 |
| Combustion | |
| Turbocharger | two-stage turbocharging with one high pressure turbocharger for low-mid RPM and two low pressure turbochargers for mid-high RPM |
| Fuel system | common rail |
| Management | Electronic |
| Fuel type | Diesel |
| Oil system | Wet sump |
| Cooling system | Liquid-cooled |
| Output | |
| Power output | up to 3.43 MW (4,600 hp) for V12 engines |
| Emissions | |
| Emissions target standard | EPA IV or EU Non-road IV |
| Emissions control systems | Exhaust gas recirculation |
| Chronology | |
| Predecessor | EMD 265H |
| Successor | None [note 1] |
The EMD 1010 or EMD 265 is a line of four-stroke diesel engines manufactured by Electro-Motive Diesel. The precursor to the 1010 was introduced around 1998 as the 265H or H-Engine. The H-engine was initially designed for use as a 6,300 hp (4,700 kW) 16 cylinder, the EMD SD90MAC; however, the early engines were found to be unreliable, and unsuccessful in the market, with the proven EMD 710 2-stroke design being preferred. The EMD four-stroke engine was resurrected in 2015 to meet EPA Tier 4 emissions regulations.
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