Product Description
Cummins NT855 / NTA855-P diesel engine is a reliable and durable power solution designed for industrial water pump systems. Known for its strong performance, easy maintenance, and wide availability of spare parts, this engine is widely used in irrigation, fire-fighting, drainage, and oilfield pump units.
We offer genuine Cummins engines with flexible configurations and optional accessories, ensuring optimal performance and quick delivery.
Technical Specification
| Item | Specifications |
| Engine model | Cummins NTA855-P400 |
| Type | Inline six-cylinder, four-stroke, turbocharged, intercooled diesel engine |
| Displacement | 14.0 liters (855 cubic inches) |
| Bore × stroke | 140 mm × 152 mm |
| Compression ratio | 16.3:1 |
| Combustion system | Direct injection, PT fuel system |
| Direction of rotation | Counterclockwise (from flywheel end) |
| Rated power/speed | 400 HP (298 kW) @ 2100 rpm |
| Maximum torque/speed | 1650 N·m @ 1300 rpm |
NT855 / NTA855-P Cummins Pump Engine Series
| NT855-P300 | NT855-P350 | NT855-P400 | Notes | |
| Engine Model | NT855-P300 | NT855-P350 | NT855-P400 | Suffix denotes rated HP |
| Type | Inline 6-cylinder, 4-stroke | Inline 6-cylinder, 4-stroke | Inline 6-cylinder, 4-stroke | Diesel engine |
| Displacement (L) | 14 | 14 | 14 | 855 cubic inches (≈14.0L) |
| Cylinder bore × stroke (mm) | 140 × 152 | 140 × 152 | 140 × 152 | Fixed design |
| Compression Ratio | 16.3:1 | 16.3:1 | 16.3:1 | May vary with turbocharging |
| Rated Power (HP/rpm) | 300/2100 | 350/2100 | 400/2100 | May vary by application |
| Maximum torque (N·m/rpm) | 1250/1300 | 1450/1300 | 1650/1300 | High low-end torque |
| Fuel System | PT Fuel System | PT Fuel System | PT Fuel System | Cummins proprietary tech |
| Turbocharger | Optional | Standard | Standard | P300 may be naturally aspirated |
| Aftercooling | Optional | Optional | Standard | Depends on configuration |
| Cooling System | Water Cooling | Water Cooling | Water Cooling | Closed-circuit system |
| Lubrication System | Forced lubrication | Forced lubrication | Forced lubrication | Full-flow filtration |
| Dry Weight (kg) | ~1100 | ~1150 | ~1200 | Varies by accessories |
| Typical Applications | Industrial, gensets | Heavy trucks, marine | Mining, power generation | High-duty cycle applications |
Features & Benefits
- Original Cummins engine, reliable quality with long lifespan
- Strong torque & fuel efficiency, suitable for continuous-duty operation
- Compatible with most industrial pump systems
- Optional spring starter available for off-grid or emergency use
- Easy to maintain, with globally available spare parts
Typical Applications
- Fire Fighting Pump Systems
- Agricultural Irrigation Pumps
- Oilfield Transfer Pumps
- Construction & Flood Drainage Systems
- Municipal Water Supply / Emergency Pumps
