Engine Speed : 1000 – 2500 RPM
| Ratio | Rate (HP/RPM) |
| 5.05 | 0.15 |
| 5.63 | |
| 6.06 | 0.135 |
| 6.47 | 0.126 |
Marine Gearbox HCD138 possesses functions of speed reduction, ahead and astern clutching and bearing propeller thrust. It is designed of vertically offset and one-stage transmission, featuring in large in ratio, small in volume and light in weight.
| Main Dimensions (L x W x H) | 494 x 800 x 870 mm |
| Net Weight | 415 kg |
| Options/Comments | Pneumatic or Electrical Remote Control |
| Center Distance | 296 mm |
| Rated Propeller Thrust | 39.3 kn |
| Flywheel | SAE 11.5, 14 |
| Bell Housing | SAE 1 |
