Details
CCEC Cummins KTA19-M550 Marine Engine
The Cummins KTA19-M550 marine diesel engine is engineered specifically for commercial continuous duty on the open water. Generating 550HP (410kW) at 2100RPM, this 19-liter inline six-cylinder platform provides the baseline thrust required for heavy displacement vessels. Built with a robust 159x159 mm bore and stroke, the KTA19-M550 marine main engine is designed to handle immense mechanical stress hour after hour. HekoPower operates as a primary Cummins KTA19-M550 supplier, delivering the genuine Chongqing Cummins KTA19-M550 directly to shipyards, fleet operators, and maritime repower specialists worldwide.
Tech Specs of KTA19-M550
General Engine Data
Engine Model: Cummins KTA19-M550
Type: 6 Cylinders in Line
Displacement: 19 L
Bore * Stroke: 159 * 159
Net Weight (with flywheel & alternator): 1906 Kg
Overall Dimension: 1666mm*874mm*1377mm
Engine Configuration No.: D193064MX02
Key Performance Data
Rated Power: 410 kW/550HP
Rated Speed: 2100 rpm
Low Idle Speed: 675-775 rpm
High Idle Speed: 2289-2475 rpm
Rating Type: Continuous Running Power
Fuel Consumption (Running Speed): 103 L/hr
Max Torque/Speed: 2050 N.m @ 1500 rpm
More Technical Data
Certification: CCS/IMO Certificates
Governor Type: Mechanical Control
Aspiration: Turbocharged
Compression Radio: 15.5:1
Fuel System: Cummins Pressure Time (PT Pump)
Starting System: Electrical Start (24V)
Lowest Starting Temp Without auxiliary system: -12℃
Cooling Method: Sea water pump, Heat exchanger, Water cooled
Real Application Scenarios for the KTA19-M550 Marine Diesel Engine
Heavy-Duty Thrust for Tugboats and Barges
The KTA19-M550 engine for tugboats excels because of its immediate low-end torque availability. A tugboat requires maximum bollard pull at low vessel speeds to maneuver heavy loads. The KTA19-M550 2050Nm torque marine engine profile allows captains to push heavily loaded barges against strong river currents without experiencing rpm drops, engine lugging, or dangerous losses of momentum. The KTA19-M550 turbocharged aftercooled engine design ensures consistent intake air density, maintaining this high torque output even in hot, restrictive engine room environments where naturally aspirated engines would suffer severe power loss.
Continuous Operations in Fishing and Cargo Vessels
Commercial vessel propulsion demands long operating hours with absolutely minimal downtime. The KTA19-M550 engine for fishing vessels is frequently run continuously for weeks during a single deep-sea expedition. Its strictly mechanical design tolerates the varying fuel qualities frequently found in remote coastal ports. When deployed as a KTA19-M550 engine for cargo vessels, the continuous duty rating allows the ship to maintain a steady cruising speed, optimizing the Cummins KTA19-M550 fuel consumption per hour across long inter-coastal distances. The large oil pan capacity ensures lubrication remains stable even during heavy hull pitching and rolling.
Specialized Power for Dredgers and Workboats
Dredging operations place abrupt, highly variable shifting loads on the marine drivetrain. The KTA19-M550 engine for dredgers handles these sudden shock loads through a massive forged steel crankshaft and expanded main bearing surfaces. Furthermore, operators frequently utilize the front power take-off (PTO) to drive heavy hydraulic pumps. Similarly, the KTA19-M550 engine for workboats and the KTA19-M550 engine for offshore support vessels provide the unyielding reliability needed when holding a precise station near oil rigs in rough seas. The standard KTA19-M550 24V marine diesel engine electrical system integrates seamlessly with standard offshore vessel monitoring and alarm equipment.
Technical Comparisons: KTA19-M550 vs. Other Marine Engines
Understanding the KTA19-M550 power and torque comparison against similar models helps marine architects select the exact propulsion unit for a specific hull. When comparing the KTA19-M550 vs KTA19-M500, the primary difference lies in the operating speed and throttle response. The KTA19-M550 2100RPM vs KTA19-M500 1800RPM distinction means the M550 provides a higher top-end shaft speed. This makes the 550HP Cummins marine engine better suited for vessels that require a balance of heavy towing capacity and slightly higher transit speeds to reach fishing grounds faster.
Evaluating the KTA19-M550 vs KTA19-M3 500 reveals differences in the emission calibration and fuel delivery curve, though both share the same foundational 19L Cummins marine diesel engine block. Looking higher up the power band at the KTA19-M550 vs KTA19-M600 marine propulsion options, the M550 serves as the optimal middle ground for fuel efficiency and thermal management. The 600HP variant produces significantly more heat, requiring a larger heat exchanger and sea water pump capacity. When comparing the KTA19-M550 vs KTA19-M4 700, the 700HP version utilizes different turbocharger mapping and larger injectors for high-speed patrol boats, whereas the 550HP version is strictly tuned for relentless, heavy-hauling continuous duty. The KTA19-M550 550HP vs 500HP Cummins marine engine choice ultimately comes down to the specific gearbox ratio and propeller pitch already installed on the vessel.
In the commercial repower market, the KTA19-M550 marine repower engine serves as a highly requested CAT 3412 marine engine replacement alternative. The 19L Cummins inline-six footprint is significantly narrower than the wide V12 configuration of the older 3412. This narrower profile opens up critical walkway space in cramped engine rooms, making routine maintenance far easier and safer for the crew, all while delivering comparable pushing power to the propeller shaft.
Maintenance, Replacement, and Common Misconceptions
Cummins PT Fuel System Maintenance for KTA19
The KTA19-M550 PT fuel system marine engine design relies on fuel pressure and injector timing rather than modern high-pressure common rail computers. This means all troubleshooting and tuning can be done by a ship's engineer using standard mechanical tools. Maintenance must focus on regular fuel filter changes and precise mechanical injector calibration. A worn PT gear pump will lead to poor fuel atomization in the cylinder, increasing overall fuel consumption and generating heavy black exhaust smoke. HekoPower recommends checking and calibrating the fuel pump every 3,000 hours to maintain the optimal KTA19-M550 fuel consumption at rated speed.
KTA19-M550 Heat Exchanger Cooling System Care
Saltwater operation demands strict, uncompromising attention to the Cummins KTA19-M550 heat exchanger cooling system. The system uses a high-volume gear-driven sea water pump to circulate raw ocean water through the heat exchanger, cooling the closed-loop jacket water that circulates through the engine block. Sacrificial zinc anodes inside the heat exchanger must be inspected monthly and replaced when they are 50% depleted to prevent severe galvanic corrosion of the internal copper-nickel cooling tubes. Failure to maintain the raw water circuit will lead to restricted flow, causing localized boiling inside the KTA19-M550 D193064MX02 engine block and eventual head gasket failure.
Common Misconceptions About 19L Cummins Marine Diesel Engines
A frequent and costly misconception among buyers is that all 19-liter Cummins engines have identical internal components. The genuine CCEC KTA19-M550 utilizes marine-specific forged pistons, a specialized camshaft profile designed for sustained high rpm, and a water-cooled exhaust manifold to keep engine room temperatures safe. Buyers sometimes mistakenly purchase industrial generator drive engines from third parties, hoping to convert them cheaply for marine propulsion use. Those industrial engines lack the IMO Tier II certified 550HP marine engine emissions calibration, the specialized governor spring packs for variable speed operation, and the heavy-duty cooling capacity required for propulsion, inevitably leading to premature catastrophic failure at sea.
Exploring the Broader Cummins K19-M Series
While the KTA19-M550 550HP 2100RPM diesel engine is a premier, highly reliable choice for many commercial operators, varying hull designs, gearbox limitations, and operational speed requirements often dictate the need for different power nodes. Evaluating the entire 19-liter family ensures your vessel operates at peak mechanical efficiency without overloading the drivetrain. HekoPower supplies the complete range of these heavy-duty propulsion units to match exact marine architect specifications and class society requirements.
Cummins K19-M Series (K19 Marine Engine), marine propulsion engines for commercial and recreational applications, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes KT19-M425, KTA19-M470, KTA19-M500, KTA19-M550, KTA19-M3 (500 HP), KTA19-M3 (600 HP), KTA19-M3 (640 HP), KTA19-M4 (700 HP). All engines complete with sea water pump, heat exchanger, CCS/IMO certificates.
Frequently Asked Questions
What is the Cummins KTA19-M550 fuel consumption per hour?
At the continuous rated speed of 2100RPM under a 100% full load, the engine consumes approximately 103 liters per hour. However, real-world consumption varies heavily based on hull displacement, sea state, wind resistance, and precise propeller matching. Running the engine at a lower cruising speed of 1800RPM significantly reduces this hourly consumption figure while still providing substantial thrust for most cargo and fishing transit operations.
Where can I find the Cummins KTA19 marine engine dimensional drawing?
HekoPower provides the official CCEC KTA19-M550 dimensional drawings to our shipyard and engineering clients upon request. The general KTA19-M550 engine weight and dimensions are 1906 kg (net dry weight) with an overall physical footprint of 1666mm in length, 874mm in width, and 1377mm in height. These precise dimensions are absolutely critical when planning engine room deck hatches, exhaust routing, and stringer modifications for a commercial vessel repower project.
Does the CCEC KTA19-M550 meet current marine emissions standards?
Yes, the specific KTA19-M550 D193064MX02 engine configuration is a fully IMO Tier II certified 550HP marine engine. It complies with the International Maritime Organization regulations for nitrogen oxide (NOx) emissions limits, making it eligible for legal installation and registration in commercial vessels operating across international waters and regulated coastal zones.
How do I purchase the Cummins KTA19-M550 for sale?
You can contact the HekoPower sales engineering team directly through our inquiry form. Because the CCEC KTA19-M550 marine engine can be configured with different instrument monitoring panels, varied wiring harness lengths, and specific PTO options, we prefer to discuss your specific vessel requirements first. This ensures we provide an accurate, tailored wholesale quote that includes all necessary accessories for your specific engine room setup.
