Engine Speed : 1000 – 2500 RPM
| Ratio | Rate (HP/RPM) |
| 1.48 | 0.136 |
| 1.94 | |
| 2.45 | |
| 2.96 | 0.122 |
| 3.35 | 0.109 |
120C marine gearbox possesses functions of speed reduction, ahead and astern, clutching and de-clutching, and bearing propeller thrust. Featuring in compact in structure, small in volume and light in weight, it can match high-speed engine to form ship power unit.
| Main Dimensions (L x W x H) | 352 x 694 x 650 mm |
| Net Weight | 225 kg |
| Options/Comments | Mechanical or Electrrical Remote Control |
| Center Distance | 180 mm |
| Rated Propeller Thrust | 25 kn |
| Flywheel | SAE 11.5, 14 |
| Bell Housing | SAE 1, 2, 3 |
