Details
Cummins KTA19-DM463: Heavy-Duty 463kW Marine Auxiliary Engine
The CCEC Cummins KTA19-DM463 is a highly specialized 19-liter diesel engine engineered strictly for marine auxiliary and generator applications. Operating at a fixed 1800RPM, this 6-cylinder marine engine delivers a continuous 463kW (620HP) with a maximum 511kW standby power capability. Unlike standard commercial engines, the KTA19-DM463 complete engine is built to sustain constant-speed rotational forces while managing the severe transient loads typical of shipboard electrical grids.
HekoPower supplies this original CCEC engine to shipyards, fleet operators, and marine engineers who require uncompromised reliability in offshore environments. The block relies on a turbocharged aftercooled design integrated with a robust seawater cooling system to maintain optimal thermal efficiency. By pairing a high-capacity 24-volt starting system with the proven Cummins PT fuel pump, this engine ensures immediate start-up capabilities when deployed as a marine genset engine. Every KTA19-DM463 engine assembly meets stringent maritime safety standards, carrying CCS IMO certification to guarantee emissions compliance and operational safety across international waters.
Tech Specs of KTA19-DM463
General Engine Data
Engine Model: Cummins KTA19-DM463
Type: 6 Cylinders in Line
Displacement: 19 L
Bore * Stroke: 159 * 159
Net Weight (with flywheel & alternator): 2005 Kg
Overall Dimension: 1666mm*874mm*1377mm
Engine Configuration No.: D193097MX02
Key Performance Data
Rated Power/Standby Power: 463 kW/620HP, 511 kW/685HP
Rated Speed: 1800 rpm
Low Idle Speed: 675-700 rpm
Fuel Consumption (Running Speed): 232 g/kW.hr
Torque/Rated Speed: 2456 N.m @ 1500 rpm
More Technical Data
Certification: CCS/IMO Certificates
Aspiration: Turbocharged/Aftercooled
Compression Radio: 14.5:1
Fuel System: Cummins Pressure Time (PT Pump)
Starting System: Electrical starting motor (24V)
Cooling Method: Water cooling
Cooling Method: Sea water pump, Heat exchanger, Wet exhaust manifold
Real-World Application Scenarios
Primary Power for Fishing Vessels and Cargo Ships
In commercial fishing operations and mid-sized cargo logistics, the electrical demands are both continuous and volatile. The KTA19-DM463 auxiliary engine for cargo vessel applications excels here due to its massive 2456Nm torque reserve. When heavy deck machinery, refrigeration compressors, or heavy-lift winches are engaged, the electrical grid experiences sudden amperage spikes. The KTA19-DM463 responds immediately, relying on its PT fuel system to deliver precise fuel metering that prevents alternator voltage drops and frequency variations.
1800RPM 463KW Marine Emergency Generator Configurations
Offshore drilling platforms and deep-sea transit vessels rely on the KTA19-DM463 as a critical failsafe. When configured as an 1800RPM 463kW marine emergency generator, the engine is optimized to generate 60Hz alternating current. The integration of a high-efficiency water-cooled exhaust marine engine design ensures that the engine room ambient temperature remains within safe thresholds, even when the engine is suddenly brought to its 511kW standby power rating during a primary power failure. The heat exchanger utilizes the surrounding seawater to dissipate thermal loads rapidly, protecting the block during sustained emergency operations.
Technical Comparisons Within the K19-DM Series
Navigating the specifications of the K19-DM family requires understanding the relationship between engine speed, power output, and application intent. A common error in marine procurement is treating the KTA19-DM463 as identical to its sibling models like the KTA19-DM448, KTA19-DM507, or KTA19-DM403.
When comparing the KTA19-DM463 vs the KTA19-DM448, the primary differentiator is the power threshold matched to the alternator requirement. While both share the same 19-liter displacement and fundamental architecture, the DM463 is calibrated for a higher constant output of 463kW compared to the lower rating of the DM448. This makes the DM463 the required choice for vessels running heavier secondary electrical loads, such as extensive HVAC systems or dynamic positioning bow thrusters.
Comparing the KTA19-DM463 vs the KTA19-DM403 reveals a critical operational distinction based on regional electrical standards. The KTA19-DM463 is mechanically governed to run at 1800RPM, making it the correct configuration for coupling with a 60Hz marine generator end. Conversely, the DM403 is typically governed at 1500RPM to support 50Hz electrical grids. Selecting the wrong engine speed will result in incompatible AC frequencies for the vessel's onboard equipment.
Further contrasting the KTA19-DM463 vs the KTA19-DM507 involves looking at the absolute ceiling of the K19 auxiliary block. The DM507 pushes the output above 500kW for continuous duty, requiring a more aggressive fueling profile and higher capacity heat dissipation. For vessels that only require a maximum of 463kW, oversizing to the DM507 can lead to cylinder glazing and unburned fuel issues caused by light-load running.
It is also vital to understand the difference between the KTA19-DM463 auxiliary engine vs a K19 propulsion engine. Propulsion engines operate on a variable speed curve, accelerating and decelerating to drive a propeller through a marine gearbox. The DM463 is strictly an auxiliary generator engine, built with a constant-speed governor designed to lock in at exactly 1800RPM regardless of the mechanical load applied by the alternator.
Maintenance, Overhaul, and Common Misconceptions
Servicing the KTA19-DM463 PT Fuel System
The Cummins PT (Pressure-Time) fuel pump for the KTA19-DM463 is the heart of the engine's reliability. A frequent maintenance misconception is that the PT system requires the same bleeding procedures as modern common-rail engines. In reality, the PT system is largely self-venting, but it is highly sensitive to fuel inlet restrictions. Ship engineers must maintain strict vacuum tolerances on the primary fuel filters. HekoPower supplies genuine KTA19-DM463 maintenance parts, including exact-match PT injector sets, to ensure the injection timing and spray pattern remain optimal for the 1800RPM operating speed.
Seawater Pump and Heat Exchanger Management
Thermal management in this 620HP engine relies heavily on the seawater pump and the main heat exchanger. A common misconception among new crew members is that engine coolant temperature spikes always indicate a failing thermostat. More often, the issue is marine growth or calcium scaling within the seawater side of the heat exchanger tubes. Routine descaling and proactive replacement of the seawater pump impeller are mandatory. We supply complete KTA19-DM463 overhaul parts, including the necessary zinc anodes to prevent galvanic corrosion within the cooling circuit.
K19-DM Marine Auxiliary Engine Series
Selecting the correct output rating ensures generator longevity and prevents the mechanical wear associated with under-loading a large diesel engine. HekoPower maintains a comprehensive inventory of CCEC marine power solutions to match exact shipyard requirements.
Cummins K19-DM Series, Marine Auxilliary Diesel Engines for commercial and recreational applications, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes KTA19-DM336, KTA19-DM392, KTA19-DM403, KTA19-DM448, KTA19-DM463, KTA19-DM507. All engines complete with sea water pump, heat exchanger, CCS/IMO certificates.
FAQs – Cummins KTA19-DM463 Marine Engine
What is the expected KTA19-DM463 fuel consumption at full load?
Fuel consumption is directly tied to the electrical load drawn from the alternator. At a continuous prime load of 463kW running at 1800RPM, the KTA19-DM463 fuel consumption is highly optimized due to the turbocharged aftercooled design. For exact gallon-per-hour or liter-per-hour metrics at 50%, 75%, and 100% load, our engineering team can provide the specific CCEC performance curve sheets based on your alternator pairing.
Are the KTA19-DM463 engine dimensions and weight suitable for repowering older vessels?
Yes. The KTA19-DM463 engine weight and footprint are exceptionally compact for a 19-liter displacement block producing 620HP. Its inline-6 cylinder marine engine design allows it to fit through standard engine room hatches and occupy narrow deck spaces, making it a preferred replacement engine for aging auxiliary power systems.
What is the standard KTA19-DM463 engine lead time?
As a dedicated engine exporter and supplier, HekoPower typically maintains a lead time of around 15 business days for a standard KTA19-DM463 complete engine assembly. However, lead times can vary if specific class society surveys (such as custom CCS or IMO witnessing) are required prior to shipment.
Do you provide KTA19-DM463 spare parts at wholesale prices?
Yes. HekoPower is not just an engine supplier; we support the entire lifecycle of the equipment. We offer a wholesale price structure for genuine engine replacement components, routine maintenance kits, and complete KTA19-DM463 overhaul parts to fleet operators and marine service yards.
