Cummins 6LTAA8.9 224KW 300HP Marine Diesel Engine
6-cylinder in-line diesel engine for propulsion and auxiliary duty on workboats, fishing vessels, tugs and barges, supplied as the Cummins 6LTAA8.9 at 224 kW (300 HP) at 245 kW/328HP @ 1858 rpm from 8.9 L.
- Home
- Products
- Marine Engines
- Cummins 6LTAA8.9 224KW 300HP Marine Diesel Engine
What This Engine Is Built For
MEP Power supplies the Cummins 6LTAA8.9 as a complete 6-cylinder in-line marine diesel engine of 8.9 L running a 114 * 145 mm bore and stroke. It is rated at 224 kW (300 HP) at 245 kW/328HP @ 1858 rpm and develops 1250 N.m @ 1400 rpm. The engine is turbocharged/air-air cooled, with a Weifu PW2000 Pump/RQV-K Governor fuel system. It is built at the Dongfeng Cummins Plant 6LTAA8.9-M300 and carries CCS Certificates. Typical duty is propulsion and auxiliary duty on workboats, fishing vessels, tugs and barges; dry weight with flywheel and alternator is 674 Kg and the overall envelope is 1360mm*780mm*988mm Engine Cofiguration No.:.
Key Benefits
- Delivers 224 kW (300 HP) at 245 kW/328HP @ 1858 rpm from 8.9 L as a factory-rated assembly.
- Peak torque of 1250 N.m @ 1400 rpm holds the load without downshifting or derating.
- Turbocharged/Air-air Cooled induction keeps charge temperature under control in continuous duty.
- Supplied to CCS Certificates, so the unit can be registered in markets that require it.
- Dry weight 674 Kg and envelope 1360mm*780mm*988mm Engine Cofiguration No.: are published so the installation can be checked before ordering.
- Published fuel consumption of ≤ 64 L/hr 6LTAA8.9-M300 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 6LTAA8.9 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 | Cummins 6LTAA8.9 224KW 300HP Marine Diesel Engine |
| Type | 6 Cylinders in Line, 4 Stroke |
| Displacement | 8.9 L |
| Bore x Stroke | 114 * 145 |
| Net Weight (with flywheel and alternator) | 674 Kg |
| Overall Dimension | 1360mm*780mm*988mm Engine Cofiguration No.: |
| Manufacturing Plant | Dongfeng Cummins Plant 6LTAA8.9-M300 |
| Rated Power/Speed | 224 kW/300HP @ 1800 rpm Max. Power/ |
| Rated Speed | 245 kW/328HP @ 1858 rpm |
| Max Torque/Speed | 1250 N.m @ 1400 rpm |
| Torque/Rated Speed | 1295 N.m @ 1800 rpm |
| Low Idle Speed | 630-830 rpm |
| High Idle Speed | 2100 rpm |
| Fuel Consumption (running speed) | ≤ 64 L/hr 6LTAA8.9-M300 |
| Certification | CCS Certificates |
| Aspiration | Turbocharged/Air-air Cooled |
| Fuel System | Weifu PW2000 Pump/RQV-K Governor |
| Starting System | Electrical Start (12V/24V) |
| Governor Type | Mechanical Control |
| Compression Ratio | 16.6:1 |
| Engine Cooling Fluid Volume | 11.1 L |
| Lowest Starting Temp (without auxiliary system) | -12℃ |
| Cylinders | 6 Cylinders in-line |
| Prime Power | 224KW/300HP |
Technical Features
- Cylinders: 6 Cylinders in Line, 4 Stroke
- Displacement: 8.9 L
- Bore and stroke: 114 * 145
- Aspiration: Turbocharged/Air-air Cooled
- Fuel system: Weifu PW2000 Pump/RQV-K Governor
- Governor: Mechanical Control
- Starting system: Electrical Start (12V/24V)
- Compression ratio: 16.6:1
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 6LTAA8.9 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 224 kW (300 HP) on paper, but its running history is unknown and the warranty rarely covers the whole engine. |
| A larger engine in the same 6LTAA8.9 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. |
6LTAA8.9 Questions
Is this 6LTAA8.9 a genuine Cummins engine
What power does the 6LTAA8.9 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
Other Models Buyers Compare With This One
Cummins 6LTAA8.9 230KW 315HP Marine Diesel Engine
Cummins 6LTAA8.9 6-cylinder in-line diesel engine of 8.9 L delivering 230 kW (315 HP) at 253 kW/344HP @ 2200 rpm used for propulsion and auxiliary duty on workboats, fishing vessels, tugs and barges.
View specification
Cummins 6LTAA8.9-GM215 215KW 288HP Marine Diesel Engine
Cummins 6LTAA8.9-GM215 6-cylinder in-line diesel engine rated 215 kW (288 HP) at 1800 rpm with 8.9 L displacement for propulsion and auxiliary duty on workboats, fishing vessels, tugs and barges.
View specification
Cummins 6LTAA8.9-GM200 200KW 268HP Marine Diesel Engine
6-cylinder in-line diesel engine for propulsion and auxiliary duty on workboats, fishing vessels, tugs and barges, supplied as the Cummins 6LTAA8.9-GM200 at 200 kW (268 HP) at 1500 rpm from 8.9 L.
View specificationWhere It Is Used
Quote The 6LTAA8.9
Send your serial number or nameplate photograph and we will confirm the configuration, then price genuine and OEM options side by side.