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NTA855-C450
Cummins
Product Overview
The Cummins NTA855-C450 is a robust, high-performance 14-liter diesel engine engineered for maximum power and reliability in the most demanding industrial and heavy equipment applications. As a top-tier model within the legendary NTA855 series from Chongqing Cummins Engine Co., Ltd. (CCEC), this turbocharged and aftercooled engine delivers a formidable 336 kW (450 HP). It is built upon a legacy of mechanical simplicity and exceptional durability, providing the rugged power required for critical operations where uptime is paramount.
Core Technical Specifications
| Feature | Specification |
|---|---|
| Engine Model | Cummins NTA855-C450 |
| Configuration | In-line 6 cylinders, 4-Stroke |
| Displacement | 14 Liters |
| Bore × Stroke | 140 mm × 152 mm |
| Rated Power/Speed | 336 kW / 450 HP @ 2100 RPM |
| Peak Torque/Speed | Approx. 1790-1900 N·m @ 1400-1500 RPM |
| Aspiration | Turbocharged and Aftercooled (Water-Air Intercooler) |
| Fuel System | Cummins PT (Pressure-Time) Direct Injection Pump |
| Emission Standard | Euro II / Tier II |
| Dry Weight (Approx.) | ~1300 - 1350 kg |
Primary Equipment Applications
The NTA855-C450 is designed as the prime mover for the heaviest and most demanding equipment across several key industries:
Heavy Construction & Mining: Provides reliable power for large bulldozers, mining excavators, wheel loaders, and heavy-duty haul trucks in rugged environments.
Industrial & Oilfield: Drives high-capacity mud pumps, fracturing (frac) pumps, large industrial air compressors, and drilling rigs where continuous, high-torque power is critical.
Power Generation: Serves as a robust core for large diesel generator sets used for prime or standby power in industrial facilities, mining sites, and data centers.
Specialized Heavy Equipment: Used in crane carriers, pile drivers, and dredgers.
Core Technologies & Design Advantages
Legendary PT Fuel System with Integrated Design: The heart of this engine is the proven, mechanically robust Cummins PT (Pressure-Time) fuel system. Renowned for its simplicity, reliability, and high-pressure injection, it ensures optimal combustion. The engine also features an integrated design of the cylinder block and head, which uses approximately 40% fewer parts than comparable engines. This revolutionary design drastically reduces potential leak points and failure rates, significantly enhancing overall reliability and uptime.
Heavy-Duty Architecture for Long Life: Engineered for extreme longevity, the NTA855-C450 is built with a high-strength alloy cast iron cylinder block, forged steel crankshaft and camshaft, and replaceable wet cylinder liners. The cylinder bore employs a platform mesh honing design to optimize oil retention and minimize consumption. These features collectively contribute to an extended service life and the ability to withstand severe mechanical and thermal loads.
Efficient Turbocharging and Intercooling: Equipped with a high-performance Holset turbocharger and water-to-air intercooler, the system forces denser, cooler air into the combustion chamber. This technology significantly boosts power density and fuel efficiency while managing heat effectively for sustained high-load operation.
Product Overview
The Cummins NTA855-C450 is a robust, high-performance 14-liter diesel engine engineered for maximum power and reliability in the most demanding industrial and heavy equipment applications. As a top-tier model within the legendary NTA855 series from Chongqing Cummins Engine Co., Ltd. (CCEC), this turbocharged and aftercooled engine delivers a formidable 336 kW (450 HP). It is built upon a legacy of mechanical simplicity and exceptional durability, providing the rugged power required for critical operations where uptime is paramount.
Core Technical Specifications
| Feature | Specification |
|---|---|
| Engine Model | Cummins NTA855-C450 |
| Configuration | In-line 6 cylinders, 4-Stroke |
| Displacement | 14 Liters |
| Bore × Stroke | 140 mm × 152 mm |
| Rated Power/Speed | 336 kW / 450 HP @ 2100 RPM |
| Peak Torque/Speed | Approx. 1790-1900 N·m @ 1400-1500 RPM |
| Aspiration | Turbocharged and Aftercooled (Water-Air Intercooler) |
| Fuel System | Cummins PT (Pressure-Time) Direct Injection Pump |
| Emission Standard | Euro II / Tier II |
| Dry Weight (Approx.) | ~1300 - 1350 kg |
Primary Equipment Applications
The NTA855-C450 is designed as the prime mover for the heaviest and most demanding equipment across several key industries:
Heavy Construction & Mining: Provides reliable power for large bulldozers, mining excavators, wheel loaders, and heavy-duty haul trucks in rugged environments.
Industrial & Oilfield: Drives high-capacity mud pumps, fracturing (frac) pumps, large industrial air compressors, and drilling rigs where continuous, high-torque power is critical.
Power Generation: Serves as a robust core for large diesel generator sets used for prime or standby power in industrial facilities, mining sites, and data centers.
Specialized Heavy Equipment: Used in crane carriers, pile drivers, and dredgers.
Core Technologies & Design Advantages
Legendary PT Fuel System with Integrated Design: The heart of this engine is the proven, mechanically robust Cummins PT (Pressure-Time) fuel system. Renowned for its simplicity, reliability, and high-pressure injection, it ensures optimal combustion. The engine also features an integrated design of the cylinder block and head, which uses approximately 40% fewer parts than comparable engines. This revolutionary design drastically reduces potential leak points and failure rates, significantly enhancing overall reliability and uptime.
Heavy-Duty Architecture for Long Life: Engineered for extreme longevity, the NTA855-C450 is built with a high-strength alloy cast iron cylinder block, forged steel crankshaft and camshaft, and replaceable wet cylinder liners. The cylinder bore employs a platform mesh honing design to optimize oil retention and minimize consumption. These features collectively contribute to an extended service life and the ability to withstand severe mechanical and thermal loads.
Efficient Turbocharging and Intercooling: Equipped with a high-performance Holset turbocharger and water-to-air intercooler, the system forces denser, cooler air into the combustion chamber. This technology significantly boosts power density and fuel efficiency while managing heat effectively for sustained high-load operation.