Products
Marine Transmission

06
Marine Gearbox
Max.12.5 HP at 2100RPM
Max.12.5 HP at 2100RPM
Engine Speed: 1000 ~ 2100 RPM
Ratio | 2.52 | 3.05 | 3.50 |
Rate (hp/rpm) | 0.006 | 0.006 | 0.006 |

16A
Marine Gearbox
Max.33 HP at 2000RPM
Max.33 HP at 2000RPM
Engine Speed: 1000 ~ 2000 RPM
Ratio | 2.07 | 2.48 | 2.95 | 3.35 | 3.83 |
Rate (hp/rpm) | 0.016 | 0.016 | 0.016 | 0.016 | 0.016 |

ma100a
Marine Gearbox
Max.37 HP at 3000RPM
Max.37 HP at 3000RPM
Engine Speed: 1500 ~ 3000 RPM
Ratio | 1.60 | 2.00 | 2.55 | 3.11 | 3.59 | 3.88 |
Rate (hp/rpm) | 0.012 | 0.012 | 0.0095 | 0.0095 | 0.0082 | 0.0082 |

ma125a
Marine Gearbox
Max.82 HP at 3000RPM
Max.82 HP at 3000RPM
Engine Speed: 1500 ~ 3000 RPM
Ratio | 2.03 | 2.46 | 3.04 | 3.57 | 4.05 |
Rate (hp/rpm) | 0.027 | 0.027 | 0.024 | 0.022 | 0.019 |

ma142a
Marine Gearbox
Max.102 HP at 2500RPM
Max.102 HP at 2500RPM
Engine Speed: 1500 ~ 2500 RPM
Ratio | 1.97 | 2.52 | 3.03 | 3.54 | 3.95 | 4.50 |
Rate (hp/rpm) | 0.041 | 0.041 | 0.041 | 0.035 | 0.031 | 0.026 |

40a
Marine Gearbox
Max.82HP at 2000RPM
Max.82HP at 2000RPM
Engine Speed: 750 ~ 2000 RPM
Ratio | 2.07 | 2.96 | 3.44 |
Rate (hp/rpm) | 0.04 | 0.04 | 0.034 |

mb170
Marine Gearbox
Max.132 HP at 2500RPM
Max.132 HP at 2500RPM
Engine Speed: 1000 ~ 2500 RPM
Ratio | 1.97 | 2.52 | 3.04 | 3.54 | 3.96 | 4.50 | 5.06 | 5.47 | 5.88 |
Rate (hp/rpm) | 0.053 | 0.053 | 0.053 | 0.053 | 0.053 | 0.042 | 0.042 | 0.037 | 0.037 |

120c
Marine Gearbox
Max.340 HP at 2500RPM
Max.340 HP at 2500RPM
Engine Speed: 1000 ~ 2500 RPM
Ratio | 1.48 | 1.94 | 2.45 | 2.96 | 3.35 |
Rate (hp/rpm) | 0.136 | 0.136 | 0.136 | 0.122 | 0.109 |

135a
Marine Gearbox
Max.272 HP at 2000RPM
Max.272 HP at 2000RPM
Engine Speed: 1000 ~ 2500 RPM
Ratio | 2.03 | 2.59 | 3.04 | 3.62 | 4.11 | 4.65 | 5.06 | 5.47 | 5.81 |
Rate (hp/rpm) | 0.135 | 0.135 | 0.135 | 0.135 | 0.135 | 0.127 | 0.120 | 0.105 | 0.095 |

Hc138
Marine Gearbox
Max.375 HP at 2600RPM
Max.375 HP at 2600RPM
Engine Speed: 1000 ~ 2600 RPM
Ratio | 2.52 | 3.0 | 3.57 | 4.05 | 4.45 |
Rate (hp/rpm) | 0.15 |

HCD138
Marine Gearbox
Max.375 HP at 2500RPM
Max.375 HP at 2500RPM
Engine Speed: 1000 ~ 2500 RPM
Ratio | 5.05 | 5.63 | 6.06 | 6.47 |
Rate (hp/rpm) | 0.15 | 0.135 | 0.126 |

MB242
Marine Gearbox
Max.350 HP at 2500RPM
Max.350 HP at 2500RPM
Engine Speed: 1000 ~ 2500 RPM
Ratio | 3.04 | 3.52 | 3.95 | 4.53 | 5.12 | 5.56 | 5.88 |
Rate (hp/rpm) | 0.140 | 0.140 | 0.140 | 0.140 | 0.136 | 0.128 | 0.100 |

HC200
Marine Gearbox
Max.440 HP at 2200RPM
Max.440 HP at 2200RPM
Engine Speed: 1000 ~ 2200 RPM
Ratio | 1.48 | 2.00 | 2.28 |
Rate (hp/rpm) | 0.20 | 0.20 | 0.20 |

HC201
Marine Gearbox
Max.500 HP at 2500RPM
Max.500 HP at 2500RPM
Engine Speed: 1000 ~ 2500 RPM
Ratio | 2.46 | 2.955 | 3.526 |
Rate (hp/rpm) | 0.20 | 0.20 | 0.180 |

MB270A
Marine Gearbox
Max.500 HP at 2500RPM
Max.500 HP at 2500RPM
Engine Speed: 1000 ~ 2500 RPM
Ratio | 4.05 | 4.53 | 5.12 | 5.50 | 5.95 | 6.39 | 6.82 |
Rate (hp/rpm) | 0.20 | 0.20 | 0.20 | 0.182 | 0.150 | 0.120 | 0.120 |

HCQ300
Marine Gearbox
Max.782 HP at 2300RPM
Max.782 HP at 2300RPM
Engine Speed: 1000 ~ 2300 RPM
Ratio | 1.06 | 1.46 | 2.05 | 2.38 |
Rate (hp/rpm) | 0.34 | 0.34 | 0.34 | 0.32 |

300
Marine Gearbox
Max.805 HP at 2300RPM
Max.805 HP at 2300RPM
Engine Speed: 1000 ~ 2300 RPM
Ratio | 2.04 | 2.54 | 3.00 | 3.53 | 4.10 | 4.61 | 4.94 | 5.44 |
Rate (hp/rpm) | 0.35 | 0.35 | 0.33 | 0.30 | 0.25 | 0.20 | 0.20 | 0.17 |

D300A
Marine Gearbox
Max.805 HP at 2300RPM
Max.805 HP at 2300RPM
Engine Speed: 1000 ~ 2300 RPM
Ratio | 4.00 | 4.48 | 5.05 | 5.52 | 5.90 | 6.56 | 7.06 | 7.63 |
Rate (hp/rpm) | 0.35 | 0.33 | 0.30 | 0.25 | 0.25 | 0.25 | 0.20 | 0.17 |

T300
Marine Gearbox
Max.759 HP at 2300RPM
Max.759 HP at 2300RPM
Engine Speed: 1000 ~ 2300 RPM
Ratio | 4.95 | 6.03 | 6.65 | 7.04 | 7.54 | 8.02 | 8.47 |
Rate (hp/rpm) | 0.33 | 0.33 | 0.33 | 0.33 | 0.30 | 0.30 | 0.27 |

t300/1
Marine Gearbox
Max.611 HP at 2300RPM
Max.611 HP at 2300RPM
Engine Speed: 1000 ~ 2300 RPM
Ratio | 8.94 | 9.45 |
Rate (hp/rpm) | 0.266 | 0.266 |

HCQ401
Marine Gearbox
Max.1035 HP at 2300RPM
Max.1035 HP at 2300RPM
Engine Speed: 1500 ~ 2300 RPM
Ratio | 1.00 | 1.12 | 1.50 | 2.04 | 2.50 |
Rate (hp/rpm) | 0.45 | 0.45 | 0.45 | 0.45 | 0.40 |

HC400
Marine Gearbox
Max.810 HP at 1800RPM
Max.810 HP at 1800RPM
Engine Speed: 1000 ~ 1800 RPM
Ratio | 2.04 | 2.50 | 3.00 | 3.42 | 4.06 |
Rate (hp/rpm) | 0.41 | 0.41 | 0.41 | 0.41 | 0.35 |

HCD400
Marine Gearbox
Max.810 HP at 1800RPM
Max.810 HP at 1800RPM
Engine Speed: 1000 ~ 1800 RPM
Ratio | 3.96 | 4.33 | 4.43 | 4.70 | 5.00 | 5.53 | 5.89 |
Rate (hp/rpm) | 0.41 | 0.41 | 0.41 | 0.41 | 0.41 | 0.362 | 0.337 |

HCT400A
Marine Gearbox
Max.945 HP at 2100RPM
Max.945 HP at 2100RPM
Engine Speed: 1000 ~ 2100 RPM
Ratio | 6.09 | 6.49 | 6.93 | 7.42 | 7.95 | 8.40 | 9.00 | 9.47 |
Rate (hp/rpm) | 0.45 | 0.45 | 0.45 | 0.42 | 0.39 | 0.36 | 0.33 | 0.33 |

HCT400A/1
Marine Gearbox
Max.945 HP at 2100RPM
Max.945 HP at 2100RPM
Engine Speed: 1000 ~ 2100 RPM
Ratio | 8.15 | 8.69 | 9.27 | 9.94 | 10.60 | 11.46 | 12.00 |
Rate (hp/rpm) | 0.45 | 0.45 | 0.45 | 0.43 | 0.40 | 0.37 | 0.36 |

HC600A
Marine Gearbox
Max.340 HP at 2500RPM
Max.340 HP at 2500RPM
Engine Speed: 1000 ~ 2500 RPM
Ratio | 2.00 | 2.48 | 3.00 | 3.58 | 3.89 |
Rate (hp/rpm) | 0.60 | 0.60 | 0.60 | 0.54 | 0.49 |

HCD600A
Marine Gearbox
Max.1365 HP at 2100RPM
Max.1365 HP at 2100RPM
Engine Speed: 1000 ~ 2100 RPM
Ratio | 4.18 | 4.43 | 4.70 | 5.00 | 5.44 | 5.71 |
Rate (hp/rpm) | 0.60 | 0.60 | 0.57 | 0.54 | 0.49 | 0.49 |

HCT600A
Marine Gearbox
Max.1260 HP at 2100RPM
Max.1260 HP at 2100RPM
Engine Speed: 1000 ~ 2100 RPM
Ratio | 6.06 | 6.49 | 6.97 | 7.51 | 8.04 | 8.66 | 9.35 |
Rate (hp/rpm) | 0.55 | 0.49 | 0.45 | 0.45 | 0.41 | 0.36 | 0.35 |

HCT600A/1
Marine Gearbox
Max.1260 HP at 2100RPM
Max.1260 HP at 2100RPM
Engine Speed: 1000 ~ 2100 RPM
Ratio | 8.23 | 8.82 | 9.47 | 10.8 | 11.65 | 12.57 |
Rate (hp/rpm) | 0.55 | 0.51 | 0.49 | 0.464 | 0.437 | 0.41 |

HCd800
Marine Gearbox
Max.1530 HP at 1800RPM
Max.1530 HP at 1800RPM
Engine Speed: 1000 ~ 1800 RPM
Ratio | 3.427 | 3.96 | 4.391 | 4.905 | 5.474 | 5.889 |
Rate (hp/rpm) | 0.85 | 0.85 | 0.85 | 0.80 | 0.75 | 0.70 |

HCT800
Marine Gearbox
Max.1530 HP at 1800RPM
Max.1530 HP at 1800RPM
Engine Speed: 800 ~ 1800 RPM
Ratio | 4.95 | 5.57 | 5.68 | 5.93 | 6.43 | 6.86 | 7.33 | 7.84 |
Rate (hp/rpm) | 0.85 | 0.80 | 0.75 | 0.70 |

900
Marine Gearbox
Max.1440 HP at 1600RPM
Max.1440 HP at 1600RPM
Engine Speed: 600 ~ 1600 RPM
Ratio | 1.46 | 2.04 | 2.47 | 3.00 | 3.60 | 4.08 | 4.63 | 4.95 |
Rate (hp/rpm) | 0.90 | 0.90 | 0.90 | 0.90 | 0.75 | 0.66 | 0.58 | 0.55 |

HCT1100
Marine Gearbox
Max.1841RPM HP at 1600RPM
Max.1841RPM HP at 1600RPM
Engine Speed: 700 ~ 1600 RPM
Ratio | 5.60 | 5.98 | 6.39 | 6.85 | 7.35 | 7.90 |
Rate (hp/rpm) | 1.15 | 1.15 | 1.15 | 1.14 | 1.05 | 1.00 |

HCT1200
Marine Gearbox
Max.2024 HP at 1600RPM
Max.2024 HP at 1600RPM
Engine Speed: 1000 ~ 1600 RPM
Ratio | 7.9 |
Rate (hp/rpm) | 1.265 |

HC1250
Marine Gearbox
Max.1654 HP at 1800RPM
Max.1654 HP at 1800RPM
Engine Speed: 400 ~ 1800 RPM
Ratio | 2.03 | 2.48 | 3.04 | 3.48 | 3.95 |
Rate (hp/rpm) | 1.25 | 1.25 | 1.25 | 1.25 | 1.16 |

GW SERIES
Marine Gearbox
Model | RPM | Ratio | HP/RPM |
GWC28.30 GWL28.30 |
400~900 400~1150 400~1350 400~1600 400~1800 400~1800 400~1800 400~1800 400~1800 |
2.0607 2.50053 3.080 3.5353 4.0526 4.5351 5.0918 5.5861 6.1368 |
1.07 0.88 0.72 0.62 0.54 0.47 0.43 0.39 0.35 |
GWC30.32 GWL30.32 |
400~900 400~1150 400~1350 400~1600 400~1800 400~1800 400~1800 400~1800 400~1800 |
2.0317 2.5517 3.0370 3.5200 4.0 4.5455 5.0476 5.6410 6.054 |
1.45 1.15 0.97 0.84 0.73 0.64 0.58 0.51 0.47 |
GWC32.35 GWL32.35 |
400~900 400~1150 400~1350 400~1600 400~1800 400~1800 400~1800 400~1800 400~1800 |
2.0585 2.5415 3.0211 3.5759 4.0526 4.5930 5.0894 5.5724 6.0789 |
1.83 1.48 1.25 1.05 0.93 0.82 0.73 0.67 0.61 |
GWC36.39 GWL36.39 |
400~900 400~1150 400~1350 400~1600 400~1800 400~1800 400~1800 400~1800 400~1800 |
1.9737 2.4502 2.9791 3.4737 3.9474 4.3958 5.0065 5.4656 5.9744 |
2.50 2.00 1.66 1.42 1.25 1.11 1.00 0.91 0.83 |
GWC39.41 GWL39.41 |
400~800 400~1000 400~1200 400~1400 400~1600 400~1600 400~1600 400~1600 400~1600 |
1.9750 2.4690 3.052 3.48 4.051 4.484 4.996 5.506 5.989 |
3.26 2.54 2.11 1.82 1.59 1.41 1.25 1.13 1.03 |
GWC42.45 GWL42.45 |
400~800 400~1000 400~1200 400~1400 400~1600 400~1600 400~1600 400~1600 400~1600 |
2.0 2.5454 3.0244 3.5789 4.0 4.4706 5.0 5.60 5.9310 |
4.28 3.36 2.83 2.39 2.09 1.90 1.69 1.50 1.42 |
GWC45.49 GWL45.49 |
400~700 400~900 400~1050 400~1250 400~1400 400~1400 400~1400 400~1400 400~1400 |
1.9737 2.4671 2.8947 3.4460 3.9474 4.3741 4.8496 5.5024 5.9847 |
5.59 4.45 3.70 3.20 2.79 2.48 2.24 2.02 1.81 |
GWC49.54 GWL49.54 |
400~600 400~750 400~900 400~1050 400~1200 400~1200 400~1200 400~1200 400~1200 |
1.9359 2.4593 2.9172 3.4457 3.9524 4.5336 4.9105 5.4823 5.9967 |
7.36 5.79 4.88 4.13 3.60 3.12 2.87 2.56 2.34 |
GWC52.59 GWL52.59 |
400~600 400~750 400~900 400~1050 400~1200 400~1200 400~1200 400~1200 400~1200 |
1.9341 2.4817 2.9643 3.5251 3.9524 4.4314 4.9725 5.4017 5.9286 |
9.60 7.47 6.26 5.26 4.69 4.16 3.62 3.39 3.08 |
GWC60.66 GWL60.66 |
400~600 400~750 400~900 400~1050 400~1200 400~1200 400~1200 400~1200 400~1200 |
2.0123 2.4990 3.0722 3.5738 4.0513 4.4838 5.0786 5.5061 6.1161 |
12.58 9.88 8.39 7.19 6.29 5.47 4.98 4.53 4.12 |
GWC70.76 GWL70.76 |
300~465 300~575 300~705 300~815 300~900 300~900 300~900 300~900 300~900 |
2.048 2.528 3.091 3.583 3.95 4.57 5.04 5.576 6.172 |
18.309 14.81 12.079 10.45 9.46 8.169 7.399 6.699 6.049 |
GWC78.88 GWL78.88 |
200~325 200~400 200~475 200~555 200~630 200~715 200~800 200~870 200~970 |
2.039 2.495 2.981 3.476 3.950 4.489 5.010 5.469 6.085 |
26.656 21.787 18.238 15.64 13.763 12.104 10.853 9.942 8.935 |