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CCEC Cummins KTA38-DM664 Marine Auxiliary Engine (664kW/890HP)
The CCEC Cummins KTA38-DM664 marine auxiliary engine is a heavy-duty 664kW (890HP) diesel generator drive engine designed for continuous power supply on commercial vessels. As a trusted supplier, HekoPower provides genuine Cummins KTA38-DM664 engine assemblies with competitive pricing, fast delivery, and full export support.
Unlike propulsion engines, the KTA38-DM664 is specifically engineered for marine auxiliary applications, powering onboard electrical systems for cargo ships, fishing vessels, offshore support vessels, and barges.
Tech Specs of CCEC KTA38-DM664
General Engine Data
Engine Model: Cummins KTA38-DM664
Type: 12 Cylinders, V Type, 4 Stroke, Diesel
Displacement: 38 L
Bore * Stroke: 159 * 159
Net Weight (with flywheel & alternator): 4081 Kg
Overall Dimension: 2003mm*1362mm*1661mm
Engine Configuration No.: D233037MX02
Key Performance Data
Rated Power/Standby Power: 664 kW/890HP, 731 kW/980HP
Rated Speed: 1500 rpm
Low Idle Speed: 725-775 rpm
Fuel Consumption (Running Speed): 232 g/kW.hr
Torque/Rated Speed: 4227 N.m @ 1500 rpm
More Technical Data
Certification: CCS/IMO Certificates
Aspiration: Turbocharged/Aftercooled
Compression Radio: 15.5:1
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
KTA38-DM664 Fuel Consumption at 75% and 100% Load
Efficiency is the primary concern for any fleet manager. When evaluating the Cummins KTA38-DM664 fuel consumption per hour, the engine maintains a highly competitive curve. At 100% load, the efficiency of the 38L V12 Diesel Engine ensures that operational costs remain predictable, while at 75% load, the PT pump fuel system calibration maintains optimal combustion temperatures to prevent carbon buildup.
Application Guide: Marine Auxiliary vs. Propulsion Engine KTA38
A common point of confusion is the difference between KTA38-M2 and KTA38-DM664 ratings. While the KTA38-M2 is built for propulsion (moving the ship), the DM664 is a "Generator Drive" (Auxiliary).
The 664KW 890HP marine auxiliary diesel engine is the ideal choice for:
- Cargo Ships & Tankers: As a primary power source for the ship’s main switchboard.
- Fishing Vessel Power Supply: Providing the high-wattage power needed for industrial-scale refrigeration units.
- Marine Repower Projects: Specifically as a Replacement CCEC KTA38-DM664 for commercial vessel power overhaul, often used to replace old Cummins KT38 units with a modern, more efficient upgrade.
Marine Auxiliary vs Propulsion Engine (KTA38 Series)
A common question is the difference between KTA38-DM664 and propulsion models like KTA38-M2:
- KTA38-DM664 → Generator drive / auxiliary power
- KTA38-M2 → Main propulsion engine
- DM series optimized for constant RPM (1500RPM/1800RPM)
- M series optimized for variable load propulsion
Choosing the correct configuration ensures fuel efficiency and system compatibility.
KTA38-DM664 vs. KTA38-DM1007 and Other Series Comparison
In the Cummins K38-DM series comparison, the DM664 sits in a "sweet spot" of power density. While higher-rated units like the DM1007 offer more output, the DM664 provides a more compact thermal footprint, which simplifies marine gearbox matching compatibility and cooling manifold arrangements in tighter engine rooms.
- DM664: Medium power auxiliary solution (664kW)
- DM1007: Higher output for larger vessels
- DM664 offers better efficiency for mid-sized ships
Certification, Maintenance, and HekoPower Support
Every Genuine KTA38-DM664 Engine Assembly for Sale through HekoPower comes with full CCS/IMO Tier II certification. This ensures compliance with international maritime emission standards, making it eligible for export to major global ports.
- Maintenance: To maintain the Cummins KTA38 marine engine overhaul time of 15,000–20,000 hours, we recommend strictly following the KTA38-DM664 maintenance interval for oil and filter changes.
- Troubleshooting: We provide a comprehensive guide for KTA38-DM664 common faults and troubleshooting, focusing on the 24V electric start system and fuel injection pump calibration settings.
Why Choose HekoPower for Your KTA38-DM664 Supply?
Buying a genuine Cummins KTA38-DM664 engine assembly directly from a trusted China supplier like HekoPower eliminates the risks associated with the secondary market.
- Pricing: We offer the HekoPower Cummins KTA38-DM664 absolute wholesale price.
- Lead Time: Our standard lead time is 15-30 business days, significantly faster than many domestic distributors.
- Logistics: We provide full KTA38-DM664 engine weight (4081Kg net) and shipping dimensions to help you calculate international freight costs accurately before you buy.
- Warranty: Every unit is backed by a 12 months warranty and HekoPower’s dedicated after-sales technical support.
Cummins K38-DM Series, Marine Auxilliary Diesel Engines for commercial and recreational applications, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes KT38-DM560, KT38-DM679, KTA38-DM664, KTA38-DM768, KTA38-DM809, KTA38-DM814, KTA38-DM880, KTA38-DM1007. All engines complete with sea water pump, heat exchanger, CCS/IMO certificates.
