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| BMW M51 | |
|---|---|
 | |
| Overview | |
| Manufacturer | BMW |
| Production | 1991-2000 |
| Layout | |
| Configuration | Inline-6 |
| Displacement | 2.5 L; 152.4 cu in (2,497 cc) |
| Cylinder bore | 80 mm (3.15 in) |
| Piston stroke | 82.8 mm (3.26 in) |
| Cylinder block material | Cast iron |
| Valvetrain | SOHC 2 valves x cyl. |
| Compression ratio | 22.0:1 |
| Combustion | |
| Turbocharger | Single turbo, tds-engines also have an intercooler |
| Fuel system | Swirl-chamber-injection |
| Management | Bosch DDE 2.1 |
| Fuel type | Diesel fuel (DIN 51601) |
| Cooling system | Water-cooled |
| Output | |
| Power output | 85–105 kW (114–141 hp) |
| Torque output | 222–280 N⋅m (164–207 lb⋅ft) |
| Dimensions | |
| Dry weight | 132 kg (291 lb) |
| Chronology | |
| Predecessor | BMW M21 |
| Successor | BMW M57 |
The BMW M51 is an inline-6 cylinder Diesel engine produced by the Upper Austrian BMW plant in Steyr from July 1991 through February 2000. Its predecessor is the BMW M21, the successor is the BMW M57.