Weichai Marine Engine 
Weichai has become a top-tier supplier of marine power and power generating units in China. Currently, the company is specialized in developing, manufacturing and selling 30-12000 HP medium-and-high-speed diesel engines, generating sets and powertrain system for marine power and generating device market.
| Engine | HP | kW | RPM |
| 226B-3C | 48-68 | 35-50 | 1800 |
| WP4 | 95-120 | 70-88 | 1800 |
| WP6 | 142-185 | 105-136 | 1800-2100 |
| WP12 | 400-450 | 295-330 | 1800-2100 |
| WP13C | 450-500 | 330-368 | 1800 |
| WD10 | 240 | 176 | 1800 |
| WD12 | 350 | 258 | 1800 |
| 6170 | 520 | 382 | 1200 |
| 8170 | 720-818 | 530-601 | 1200-1350 |
| CW12V200 | 1632-1958 | 1200-1440 | 1000 |
| CW16V200 | 2394 | 1760 | 1000 |
| CW6200 | 949 | 698 | 1000 |
| CW6250 | 2000 | 1470 | 1000 |
| CW8200 | 1262 | 928 | 1000 |
| CW8250 | 2666 | 1960 | 1000 |
| L21 31 | 1754-2632 | 1290-1935 | 1000 |
| L27 38 | 2774-4468 | 2040-3285 | 800 |
| L32 40 | 4080-6120 | 3000-4500 | 720/750 |
| V32 40 | 8160-12240 | 6000-9000 | 720/750 |