


B5.9 Generator Engines Basic information
| Engine Type: | 6 – Cylinder; In – line; 4 – Cycle |
| Displacement: | 5.9 L |
| Rated Speed: | 1500 – 1800 RPM |
| Governed(kW@RPM): | 86 kW to 150 kW@1500 – 1800 RPM |
| Standby Power(kW@RPM): | 92 kW to 165 kW@1500 – 1800 RPM |
| Bore * Stroke: | 102 mm*120 mm |
| Packing Size (L * W * H): | 1000mm * 910mm * 1050mm |
| Dry Weight: | 780-860kg |
DCEC B5.9 Generator Engines Detailed information
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The Dongfeng Cummins Joint Venture Plant (DCEC), established in 1986 as a collaboration between Dongfeng Motor Corporation and Cummins USA (with Cummins holding a 50% stake), has become a key player in the global engine manufacturing industry. This plant operates under Cummins’ technology and product line, producing a wide range of high-quality engines. These engines are widely used in demanding heavy-duty applications across a variety of sectors, further enhancing their reputation.
One of the standout engines produced by DCEC is the Cummins 6BT5.9-G, which is highly regarded for its versatility and reliability. As a result, it is commonly used in several critical industrial applications, including:
- Heavy Trucks
- Excavators
- Road Rollers
- Bulldozers
- Cranes
- Water Pumps
- Engine Power Packs (for generators and other stationary equipment)
Key Features of the Cummins 6BT5.9-G Engine
Fuel Efficiency and Cost-Effectiveness
First and foremost, one of the primary advantages of the Cummins 6BT5.9-G engine is its high fuel efficiency. This feature is specifically designed to optimize fuel consumption, which makes the engine especially cost-effective for heavy-duty operations where operational costs must be kept under control.
Advanced Integrated Design
In addition to its fuel efficiency, the engine features an advanced integrated design, a hallmark of Cummins’ precision engineering. This seamless design ensures consistent performance across a broad range of applications, providing reliability and high output when needed most.
Sophisticated Manufacturing for Quality
Moreover, the sophisticated manufacturing processes employed at the DCEC plant ensure that each engine meets the highest standards of production. As a result, the Cummins 6BT5.9-G is built for durability and long-lasting performance, even in demanding environments.
Turbocharging and Power Efficiency
Equipped with a Holset Exhaust Gas Wastegate turbocharger, the engine further enhances its efficiency and performance. By improving turbocharger efficiency, this feature contributes to greater power output, making the engine even more effective for heavy-duty tasks. Therefore, the Cummins 6BT5.9-G stands out as an engine that can handle high-load applications with ease.
Precision Fuel Injection for Better Performance
Additionally, the engine incorporates a Rotor High-Pressure Fuel Pump, which ensures precise fuel injection. This leads to optimized combustion, improving both power output and fuel efficiency. Consequently, the engine delivers excellent performance, making it a reliable choice for industries requiring dependability and high power.
Durability and Longevity
Furthermore, the engine’s Platform Honing Designed Cylinder Liner reduces friction and improves durability. This design significantly contributes to the engine’s longevity, ensuring that it can continue to perform under tough conditions for extended periods of time.
Performance and Reliability
Overall, the Cummins 6BT5.9-G engine is celebrated for its durability and exceptional performance. Its reliability in heavy-duty operations has made it a trusted choice for industries that demand robust power solutions, especially in challenging environments.
Conclusion
In conclusion, the Cummins 6BT5.9-G engine exemplifies Cummins’ dedication to innovation, efficiency, and durability. It continues to be widely recognized for its reliable performance in various demanding applications. As a result, this engine is a prime example of the success of the Dongfeng Cummins joint venture, showcasing the collaboration between Cummins’ global engineering expertise and Dongfeng’s local manufacturing capabilities.
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Summary of B5.9 Generator Engines models
| Engine Model | Governed(kW@RPM) | Standby Power(kW@RPM) |
| 6BT5.9-G1 | 86@1500 | 92@1500 |
| 6BT5.9-G1 | 96@1500 | 106@1500 |
| 6BT5.9-G2 | 86@1500 100@1800 | 92@1500 110@1800 |
| 6BT5.9-G2 | 97@1500 | 106@1500 |
| 6BT5.9-G2 | 96@ 1500 115@1800 | 106@1500 127@1800 |
| 6BT5.9-G11 | 97@1500 | 106@1500 |
| 6BTA5.9-G2 | 106@1500 120@1800 | 116@1500 132@1800 |
| 6BTA5.9-G3(24V) | 120@2200 | 132@2200 |
| 6BTA5.9-G8 | 58@1500 67@1800 | 64@1500 74@1800 |
| 6BTAA5.9-G2 | 126@1500 | 140@1500 |
| 6BTAA5.9-G2 | 86@1500 100@1800 | 132@1500 145@1800 |
| 6BTAA5.9-G2(12V) | 120@1500 132@1800 | 130@1500 145@1800 |
| 6BTAA5.9-G12(24V) | 140@1500 150@1800 | 155@1500 165@1800 |
| 6BTAA5.9-G15 | 145@1500 | 160@1500 |
| 6BTAA5.9-11-G2 | 96@1500 115@1800 | 106@1500 127@1800 |

