Details
Original Cummins, new machines at absolute wholesale prices.
HekoPower Group is the reliable choice.
Chongqing Cummins KTA50-DM1291: 1291kW Marine Auxiliary Power
As a specialized global supplier of heavy-duty power, HekoPower provides the Chongqing Cummins KTA50-DM1291, the high-output choice for modern maritime operations. This 50L V16 Cummins marine diesel engine is engineered by the CCEC joint venture to deliver a continuous 1291kW (1730HP) at 1800RPM. Designed specifically for the rigorous environment of the open sea, the KTA50-DM1291 CCEC Cummins is the primary choice for 1500kVA marine generator sets, providing the stable, high-density power required for large-scale vessel operations.
Tech Specs of KTA50-DM1291
General Engine Data
Engine Model: Cummins KTA50-DM1291
Type: 16 Cylinders, V Type, 4 Stroke, Diesel
Displacement: 50 L
Bore * Stroke: 159 * 159
Net Weight (with flywheel & alternator): 5166 Kg
Overall Dimension: 2694mm*1564mm*2260mm
Engine Configuration No.: D283036MX02
Key Performance Data
Rated Power/Standby Power: 1291 kW/1730HP, 1417 kW/1900HP
Rated Speed: 1800 rpm
Low Idle Speed: 725-775 rpm
Fuel Consumption (Running Speed): ≤ 266 g/kW.hr
Torque/Rated Speed: 6944 N.m @ 1500 rpm
More Technical Data
Certification: CCS/IMO2 Certificates
Aspiration: Turbocharged/Aftercooled
Compression Radio: 13.9:1
Output Type: AC, 3 Phase
Starting System: Electrical starting motor (24V)
Cooling Method: Water cooling
Cooling Method: Sea water pump, Heat exchanger, Wet exhaust manifold
Key Features
Heavy-Duty 50L V16 Cummins Platform
Unlike smaller K19 or K38 engines, the KTA50-DM1291 features a 16-cylinder V-type configuration, delivering significantly higher torque and power output. This makes it ideal for large commercial vessels and offshore applications requiring stable high-load performance.
Turbocharged Aftercooled System
This turbocharged aftercooled marine diesel engine improves combustion efficiency and ensures consistent performance under continuous operation. The design supports reliable power output even in harsh marine environments.
Cummins PT Fuel System
The engine is equipped with the Cummins PT fuel system, known for precise fuel control, simplified maintenance, and long-term reliability in marine applications.
Operational Efficiency: KTA50-DM1291 Fuel Consumption & Cooling
For commercial vessel owners, efficiency is paramount. The KTA50-DM1291 fuel consumption at 75% load (188 L/h) is among the most competitive in the 1300kW class. When operating at a 100% continuous load, the engine remains efficient thanks to its optimized Cummins PT fuel system marine engine configuration.
Specialized Marine Cooling Systems
HekoPower offers the KTA50-DM1291 heat exchanger cooling system and seawater-cooled configurations. The KTA50-DM1291 seawater cooling system requirements are designed to prevent corrosion in saltwater environments, often featuring wet exhaust manifolds to reduce engine room temperatures—a critical factor for Cummins KTA50-DM1291 heavy duty marine power reliability.
Marine Applications of KTA50-DM1291 Engine
The Cummins KTA50-DM1291 marine auxiliary engine is widely used in:
Commercial Propulsion
Ideal as a main propulsion engine for 30-50 meter commercial vessels, including cargo ships, barges, and inland waterway transport fleets.
Workboats & Tugs
Delivers the instant torque required for tugboats and workboats during docking and towing operations.
Offshore Support
Powers offshore supply ships and crew boats where reliability and IMO Tier II compliance are mandatory for port entry.
Fishing Industry
A robust solution for fishing vessels and trawlers operating in remote waters, offering easy maintenance via the PT fuel system.
Large Yachts & Ferries
Serves as a powerful auxiliary engine for large yachts or main drive for medium-sized ferries, ensuring smooth operation with low vibration and noise standards.
Critical Distinction: KTA50-DM1291 vs. KTA50-G8 Generator Engine
A common misconception is treating marine engines as interchangeable with generator sets. The KTA50-DM1291 differs fundamentally from the KTA50-G8:
- Load Curve Calibration: The DM1291 is calibrated for a Propeller Load Curve (cubic relationship between speed and power), allowing the engine to absorb increasing load as vessel speed increases without lugging. In contrast, G-series engines are tuned for step-load (generator) applications.
- Continuous Duty Rating: While generator engines often rate power for "Standby" or "Prime" with limited annual hours, the KTA50-DM1291 is rated for Unlimited Continuous Duty, essential for long-haul cargo boats and tugboats operating 24/7.
- Marine-Specific Components: The DM1291 features marine-grade turbochargers with corrosion-resistant coatings, saltwater-proof electrical harnesses, and optional wet exhaust manifolds, which are typically absent in standard G-series units.
- Torque Characteristics: The torque curve for marine propulsion in the DM1291 provides higher low-end torque reserve for accelerating heavy vessels from a standstill, a critical requirement not needed for constant-speed generator drives.
Marine System Compatibility and Configuration
HekoPower offers complete solutions for KTA50-DM1291 marine engines, including:
Cooling System Options
- Heat exchanger cooling
- Seawater cooling systems
Gearbox and SAE Housing
Compatible with marine gearboxes for propulsion systems.
Exhaust Configuration
- Wet exhaust
- Dry exhaust options
Why Choose HekoPower as Your Supplier
Genuine CCEC Cummins Engines
We supply original Cummins engines with traceable serial numbers and factory certification.
Fast Delivery and Global Logistics
- Lead time: 15–30 business days
- Worldwide shipping for heavy marine engines
Complete After-Sales Support
- Spare parts supply
- Technical assistance
- Maintenance support
Cummins K50-DM Series, Marine Auxilliary Diesel Engines for commercial and recreational applications, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes KTA50-DM1097, KTA50-DM1291. All engines complete with sea water pump, heat exchanger, CCS/IMO certificates.
Frequently Asked Questions (FAQ)
What is the fuel consumption of KTA50-DM1291?
Approximately 188 L/h at 75% load, depending on operating conditions.
Is this engine suitable for continuous duty?
Yes, it is designed for continuous marine auxiliary and propulsion applications.
Can you provide CCS or IMO certification?
Yes, certification options are available upon request.
