Production specification:
FOR ENGINEERING
| Model | No. of Cly | Bore/stroke(mm) | Displacement(L) | Rated Power(kw) | Rated Power(hp) | Rated Speed(rpm) |
| QSB3.9-C80-30 | 4 | 102/120 | 3.9 | 60 | 81 | 2000 |
| QSB3.9-C80-31 | 4 | 102/120 | 3.9 | 60 | 81 | 2200 |
| QSB3.9-C100-31 | 4 | 102/120 | 3.9 | 74 | 100 | 2400 |
| QSB3.9-C110-30 | 4 | 102/120 | 3.9 | 81 | 110 | 2200 |
| QSB3.9-C125-30 | 4 | 102/120 | 3.9 | 93 | 126 | 2200 |
| QSB3.9-C130-30 | 4 | 102/120 | 3.9 | 97 | 132 | 2300 |
| QSB3.9-C130-31 | 4 | 102/120 | 3.9 | 97 | 132 | 2500 |
FOR ELECTRICITY
| Model | No. of Cly | Bore/stroke(mm) | Displacement(L) | Rated Power(kw) | Rated Power(hp) | Rated Speed(rpm) |
| QSB3.9-G2 | 4 | 102/120 | 3.9 | 63 | 85 | 1500 |
| QSB3.9-G2 | 4 | 102/120 | 3.9 | 70 | 95 | 1500 |
| QSB3.9-G3 | 4 | 102/120 | 3.9 | 79 | 107 | 1500 |
| QSB3.9-G3 | 4 | 102/120 | 3.9 | 88 | 119 | 1500 |
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