Details
Cummins KT38-M900 Marine Propulsion Diesel Engine (900HP / 671kW)
The Cummins KT38-M900 is a heavy-duty, 12-cylinder, 38-liter V-type marine propulsion engine engineered by CCEC (Chongqing Cummins Engine Co., Ltd.). Delivering a continuous output of 671 kW (900 HP) at 1800 RPM, this mechanical diesel power unit is a global benchmark for commercial workboats, tugs, and fishing vessels operating in demanding marine environments.
As an authorized engine exporter, HekoPower supplies original CCEC KT38-M900 complete engine assemblies, custom propulsion packages, and genuine factory replacement parts directly from Chongqing, China.
Tech Specs of Cummins KT38-M900
General Engine Data
Engine Model: Cummins KT38-M900
Type: 12 Cylinders, V Type, 4 strokes
Displacement: 38 L
Bore * Stroke: 159 * 159
Net Weight (with flywheel & alternator): 4457 Kg
Overall Dimension: 2152mm*1462mm*2083mm
Engine Configuration No.: D232007MX02
Key Performance Data
Rated Power: 671 kW/900HP
Rated Speed: 1800 rpm
Low Idle Speed: 575-675 rpm
High Idle Speed: 1962-2200 rpm
Rating Type: Continuous Running
Fuel Consumption (Running Speed): 166 L/hr
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
Technical Comparison: KT38-M900 vs. Alternative Marine Engines
Understanding how the KT38-M900 compares to related models helps shipyards and vessel owners make informed repowering decisions.
KT38-M900 vs. KTA38-M1100
Both engines share the same 38-liter V12 displacement and block dimensions. However, the KT38-M900 operates at a lower thermal stress level with a continuous rating (Continuous Duty), whereas the 1100 HP version utilizes stronger charge-air cooling (Heavy Duty / Medium Continuous) to yield higher output. The KT38-M900 offers superior fuel economy and extended engine life during long-haul, 24/7 continuous operations.
CCEC KT38-M900 vs. Electronic QSK38-M
While the electronic QSK38-M complies with stricter emissions standards (IMO Tier II/III) via Common Rail injection, the mechanical KT38-M900 remains the preferred choice in South America, Southeast Asia, and Africa. Its complete absence of electronic control modules (ECMs) makes it resilient against electrical surges and low-quality diesel fuel.
Real Marine Application Scenarios & Gearbox Integration
Matching the engine correctly with marine gearboxes and vessel hulls ensures optimal bollard pull and engine longevity.
Commercial Tugboats & Push Boats
In harbor tug operations, the KT38-M900 provides high low-end torque. This allows quick engine acceleration when maneuvering heavy barges.
- Gearbox Recommendation: Pairs seamlessly with Advance D300A / HC1200 or ZF 3350 series gearboxes with reduction ratios ranging between 4.5:1 and 6.0:1.
- Propeller Selection: Ideal for large-diameter, fixed-pitch propellers operating inside kort nozzles.
Deep-Sea Fishing Trawlers
Offshore trawlers require continuous power at steady speeds for days at a time. The 38L mechanical displacement handles thermal expansion efficiently without overheating during long trawling cycles.
Coastal Cargo Ships & Inland Dredgers
For inland river transport, the engine's compact length relative to its displacement allows tight engine room installations while retaining easy side-door access for cylinder liner servicing.
Maintenance Guide & Replacement Best Practices
Routine maintenance on the CCEC KT38-M900 centers around the mechanical PT fuel pump, injectors, and cooling circuits.
PT Fuel Injector Calibration
Inspect and adjust the PT injector settings every 1,500 to 2,000 running hours. Dirty fuel or worn injector plungers cause uneven cylinder temperature, white smoke during cold starts, and increased fuel burn. Always use genuine CCEC PT fuel injectors (Part # 3054218 / 3054219) during overhauls.
Seawater Pump & Heat Exchanger Cleaning
If operating in silt-heavy rivers or warm tropical waters, clean the shell-and-tube heat exchanger every 12 months. Marine scale buildup on the raw water side increases jacket water temperatures rapidly under full load. Flush the system with a mild descaling solution and inspect the sacrificial zinc anodes every 250 hours.
Cylinder Liner & Piston Overhaul Tips
When conducting a mid-life overhaul at 12,000–15,000 hours, replace cylinder liners, piston rings, and main bearings as a matched kit. Ensure cylinder liner protrusion is measured strictly within 0.08 mm–0.15 mm above the block surface to prevent head gasket failures.
Why Source Your CCEC Engines via HekoPower?
HekoPower is a specialized exporter of Chinese-manufactured diesel engines and OEM spare parts.
- 100% Genuine CCEC Origin: All KT38-M900 units are assembled at the Chongqing Cummins factory and carry original serial numbers verified by Cummins Global.
- Complete Propulsion Packaging: We don't just sell bare engines. We supply complete marine packages including air starters, expansion tanks, marine gearboxes, instrument panels, and flexible couplings.
- Export-Grade Protection: Every engine undergoes a 2-hour dyno test before being treated with anti-corrosion spray, vacuum wrapped, and packed into IPPC-certified seaworthy wooden crates.
Cummins K38-M Series (K38 Marine Engine), marine propulsion engines for commercial and recreational applications, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes KT38-M600, KT38-M780, KT38-M800, KT38-M850, KT38-M900, KTA38-M1 (1000 HP), KTA38-M1 (1100 HP), KTA38-M2 (545 HP), KTA38-M2 (1050 HP), KTA38-M2 (1200 HP), KTA38-M2 (1300 HP), KTA38-M2 (1350 HP). All engines complete with sea water pump, heat exchanger, CCS/IMO certificates.
Frequently Asked Questions (FAQs)
Q1: What is the difference between a bare KT38-M900 engine and a complete marine propulsion package?
A bare engine includes only the block, flywheel, turbocharger, and fuel system. A complete propulsion package from HekoPower adds a sea water pump, heat exchanger, exhaust manifold insulation, marine engine monitoring panel, and matched marine gearbox.
Q2: What is the lead time for a CCEC Cummins KT38-M900 engine order?
Standard production lead time at the CCEC factory is 20 to 30 business days. For emergency vessel repowering, HekoPower maintains ready-stock bare engines in our warehouse that can ship within 7 to 10 days.
Q3: Can the KT38-M900 replace an older KTA38-M or K19 engine?
Yes. The KT38-M900 uses identical footprint mountings as older mechanical KTA38 engines. If replacing a smaller K19 engine, bedplate modifications and shaft alignment checks will be necessary due to the extra weight and length.
Q4: How do I verify if my KT38-M900 engine is genuine CCEC?
Every CCEC engine features a metallic nameplate stamped with an 8-digit Engine Serial Number (ESN). You can verify this number through Cummins QuickServe or ask HekoPower to provide factory inspection certificates before shipment.
