Cummins KT38-M850 634KW 850HP Marine Diesel Engine
Cummins KTA38-M850 12-cylinder V-type diesel engine rated 634 kW (850 HP) at 1800 rpm with 38 L displacement for propulsion and auxiliary duty on workboats, fishing vessels, tugs and barges.
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What This Engine Is Built For
The Cummins KTA38-M850 is a 12-cylinder V-type marine diesel engine of 38 L with a 159 * 159 mm bore and stroke supplied by MEP Power as a complete assembly. It is rated at 634 kW (850 HP) at 1800 rpm and develops N.A. The engine is turbocharged/aftercooled, with a Cummins Pressure Time (PT Pump) fuel system. It is built at the Chongqing Cummins Plant and carries CCS/IMO Certificates. Typical duty is propulsion and auxiliary duty on workboats, fishing vessels, tugs and barges; dry weight with flywheel and alternator is 4457 Kg and the overall envelope is 2152mm*1462mm*2083mm.
Key Benefits
- Delivers 634 kW (850 HP) at 1800 rpm from 38 L as a factory-rated assembly.
- Peak torque of N.A holds the load without downshifting or derating.
- Turbocharged/Aftercooled induction keeps charge temperature under control in continuous duty.
- Supplied to CCS/IMO Certificates, so the unit can be registered in markets that require it.
- Dry weight 4457 Kg and envelope 2152mm*1462mm*2083mm are published so the installation can be checked before ordering.
- Published fuel consumption of 162.1 L/hr makes running cost predictable.
Application Scenarios
- Main propulsion in a steel workboat
- Auxiliary and deck machinery drive
- Fishing vessel repower
- Harbour tug and pilot boat service
Who It Is For
- Shipyards repowering workboats and fishing vessels
- Boat owners replacing a worn main engine without changing the engine bed
- Marine service yards that keep exchange engines on the shelf
- Fleet operators standardising on one Cummins family across several hulls
Problems It Solves
- A vessel out of service earns nothing, and a mismatched replacement engine means new mounts, new couplings and weeks of yard time.
- Marine duty punishes engines that were never cooled for sea water service.
- Spare parts for grey-import engines are hard to identify years later.
- Identifying the right KTA38-M850 variant from a serial number takes experience; MEP Power checks the configuration before quoting.
Specification As Published
Values below are the published data for this unit. Where a figure is not listed it was not stated by the source data sheet; ask and we will confirm before you order.
| Model | KTA38-M850 |
| Type | 12 Cylinders, V Type, 4 strokes |
| Displacement | 38 L |
| Bore x Stroke | 159 * 159 |
| Net Weight (with flywheel and alternator) | 4457 Kg |
| Overall Dimension | 2152mm*1462mm*2083mm |
| Manufacturing Plant | Chongqing Cummins Plant |
| Engine Configuration Number | D232007MX02 KTA38-M850 |
| Rated Power/Speed | 634 kW/850HP |
| Rated Speed | 1800 rpm |
| Continuous Running Max Torque/Speed | N.A |
| Low Idle Speed | 575-675 rpm |
| High Idle Speed | 1962-2200 rpm |
| Fuel Consumption (running speed) | 162.1 L/hr |
| Certification | CCS/IMO Certificates |
| Aspiration | Turbocharged/Aftercooled |
| Fuel System | Cummins Pressure Time (PT Pump) |
| Starting System | Electrical Start (24V) |
| Governor Type | Mechanical Control |
| Compression Ratio | 15.5:1 |
| Lowest Starting Temp (without auxiliary system) | -12℃ |
| Rated Power | 634 kW (850HP) |
| Cylinders | 6 Cylinders in-line |
| Prime Power | 634 kW (850HP) |
Technical Features
- Cylinders: 12 Cylinders, V Type, 4 strokes
- Displacement: 38 L
- Bore and stroke: 159 * 159
- Aspiration: Turbocharged/Aftercooled
- Fuel system: Cummins Pressure Time (PT Pump)
- Governor: Mechanical Control
- Starting system: Electrical Start (24V)
- Compression ratio: 15.5:1
Quality Control
- Every engine is inspected by the MEP Power inspection team before it leaves the warehouse
- Engine, configuration and serial numbers are recorded and photographed for the buyer
- Genuine and OEM units are quoted separately so the buyer knows exactly what is supplied
- Warranty on genuine and OEM new engines and generator sets is one year or 1000 hours, whichever comes first; parts and repair labour are covered for quality faults inside that period.
Use and Installation Guide
- Quote the model KTA38-M850 and the engine configuration number D232007MX02 KTA38-M850 when ordering so the correct variant is supplied.
- Check the gearbox reduction ratio and propeller match before ordering
- Confirm raw-water or keel cooling to suit the hull
- Commission with the exhaust system and sea water pump connected as supplied
- Keep the warranty terms in mind: one year or 1000 hours, whichever comes first.
Customisation Options
- OEM and ODM builds, including your logo and company name on the unit
- Cummins engine customisation and modification to your requirement
- Mining and special explosion-proof builds
- Genuine or OEM parts specified on the quotation
How It Compares
| Compared with | What to consider |
|---|---|
| A rebuilt or used engine of the same rating | A rebuilt unit may show the same 634 kW (850 HP) on paper, but its running history is unknown and the warranty rarely covers the whole engine. |
| A larger engine in the same KT38 range | Moving up a frame size adds weight, envelope and fuel burn; specify the next size up only if the duty cycle really needs the headroom. |
| A non-Cummins engine of similar output | Parts and service for Cummins families are available in most markets, which matters more over ten years than the purchase price on day one. |
KTA38-M850 Questions
Is this KTA38-M850 a genuine Cummins engine
What power does the KTA38-M850 produce
What warranty comes with the engine
How do I confirm this is the right variant for my machine
How is the engine shipped and what payment terms apply
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Quote The KTA38-M850
Send your serial number or nameplate photograph and we will confirm the configuration, then price genuine and OEM options side by side.