Product Description
Cummins Original K50 KTA50-DM Engine for Marine is a 50-liter turbocharged and aftercooled heavy-duty diesel engine, purpose-built for large marine vessels. With massive horsepower and robust torque, the KTA50-DM ensures reliable performance in the most demanding offshore and coastal operations. Engineered for continuous operation under harsh marine conditions, it is the preferred solution for ship propulsion, onboard power, and heavy-duty deck machinery.
Technical Specification
| Item | Value |
| Engine Model | KTA50-DM1730 |
| Engine Type | V12, 4-stroke, Turbocharged & Aftercooled |
| Displacement | 50.3 |
| Bore × Stroke | 159 × 159 |
| Compression Ratio | 13.9:1 |
| Air Intake Method | Dual Turbocharged, Aftercooled (Air-to-Air) |
| Fuel System | PT (Pressure-Time) Fuel System |
| Governor Type | Electronic (Mechanical optional) |
| Rated Power | 1730 HP / 1290 kW |
| Rated Speed | 1900 |
| Max Torque | 6750 |
| Cooling System | Water-cooled (indirect) |
| Lube Oil Capacity | 180–200 |
| Net Weight | 5100–5400 |
| Dimensions (L×W×H) | 2500 × 1600 × 1900 |
| Rotation (Flywheel view) | Clockwise |
| Emission Rating | Non-certified (non-road/marine) |
| Typical Applications | Marine Auxiliary, Marine Main Propulsion |
Cummins KTA50-DM Series Core Technical Comparison
| Parameter | KTA50-DM1350 | KTA50-DM1420 | KTA50-DM1550 | KTA50-DM1600 | KTA50-DM1730 | KTA50-DM1780 |
| Rated Power (HP/kW) | 1350 / 1007 | 1420 / 1059 | 1550 / 1156 | 1600 / 1193 | 1730 / 1290 | 1780 / 1327 |
| Rated Speed (RPM) | 1800 | 1800 | 1800 | 1900 | 1900 | 1900 |
| Displacement (L) | 50.3 | 50.3 | 50.3 | 50.3 | 50.3 | 50.3 |
| Cylinders / Layout | 12 / V-type | 12 / V-type | 12 / V-type | 12 / V-type | 12 / V-type | 12 / V-type |
| Bore × Stroke (mm) | 159 × 159 | 159 × 159 | 159 × 159 | 159 × 159 | 159 × 159 | 159 × 159 |
| Compression Ratio | 13.9:1 | 13.9:1 | 13.9:1 | 13.9:1 | 13.9:1 | 13.9:1 |
| Air intake method | Turbocharged & Aftercooled | Turbocharged & Aftercooled | Turbocharged & Aftercooled | Turbocharged & Aftercooled | Turbocharged & Aftercooled | Turbocharged & Aftercooled |
| Fuel System | PT Fuel System | PT Fuel System | PT Fuel System | PT Fuel System | PT Fuel System | PT Fuel System |
| Governor Type | Electronic or Mechanical | Electronic or Mechanical | Electronic or Mechanical | Electronic or Mechanical | Electronic or Mechanical | Electronic or Mechanical |
| Cooling System | Water-cooled (indirect) | Water-cooled (indirect) | Water-cooled (indirect) | Water-cooled (indirect) | Water-cooled (indirect) | Water-cooled (indirect) |
| Lube Oil Capacity (L) | 180–200 | 180–200 | 180–200 | 180–200 | 180–200 | 180–200 |
| Net Weight (kg) | 5000–5400 | 5000–5400 | 5000–5400 | 5000–5400 | 5000–5400 | 5000–5400 |
| Dimensions (L×W×H) | 2500×1600×1900 | 2500×1600×1900 | 2500×1600×1900 | 2500×1600×1900 | 2500×1600×1900 | 2500×1600×1900 |
| Applications | Marine Auxiliary, Marine Main Propulsion | |||||
Features & Benefits
- Ultra-High Power Output – 50L displacement delivering exceptional horsepower and torque for large vessels.
- Marine-Optimized Design – Built to withstand continuous operation, saltwater corrosion, and harsh sea conditions.
- Heavy-Duty Reliability – Designed for long-term offshore and coastal service with minimal downtime.
- Turbocharged & Aftercooled – Ensures efficient fuel use and stable performance under load.
Typical Applications
- Propulsion systems for large commercial ships and offshore vessels
- Marine generator sets for continuous onboard power
- Deck machinery and heavy-duty pumping systems
- Offshore support vessels and workboats
- Coastal transport and cargo ships
