| Model | BM170 | BM178 | BM186 | |||
| Type | Single-Cylinder, 4-Stroke air-cooled diesel engine | |||||
| Combustion System | Direct Injection | |||||
| Displacement(cc) | 211 | 296 | 406 | |||
| Bore X Stroke(mm) | 70×55 | 78×62 | 86×70 | |||
| Engine Speed(rpm) | 3000 | 3600 | 3000 | 3600 | 3000 | 3600 |
| Continuous Output(hp) | 3.4 | 3.8 | 5.5 | 6.1 | 7.7 | 9 |
| Maximum Output(hp) | 3.8 | 4.2 | 6.1 | 6.6 | 8.8 | 9.9 |
| Fuel consumption (g/hp.h) | 209 | 218 | 206 | 215 | 201 | 210 |
| Power take off | Crankshaft or camshaft (camshaft PTO rpm is 1/2 of crankshaft) | |||||
| Output direction of PTO | Counter-clockwise | |||||
| Cooled Type | Forced air cooled System | |||||
| Governor system | Centrifugal weight system | |||||
| Starting System | Recoil or Recoil/Electric | |||||
| Fuel | Diesel | |||||
| Fuel Tank Capacity | 2.5 | 3.5 | 5.5 | |||
| Lube Oil Capacity | 0.75 | 1.1 | 1.65 | |||
| DIM LxWxH | 430x370x465 | 480x450x525 | 525x470x565 | |||
| Weight(kg) | 35 | 41 | 56 | |||
| Noise level | 82 db(A) at 4 mts | 85 db(A) at 4 mts | 88 db(A) at 4 mts | |||
