Cummins 6LTAA9.5-G3 250KW 335HP Generator Engine
Cummins 6LTAA9.5-G3 6-cylinder in-line diesel engine rated 250 kW (335 HP) at 1500 rpm with 9.5L displacement for prime and standby generator sets.
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What This Engine Is Built For
The Cummins 6LTAA9.5-G3 is a 6-cylinder in-line generator drive diesel engine of 9.5L with a 116 * 148 mm bore and stroke supplied by MEP Power as a complete assembly. It is rated at 250 kW (335 HP) at 1500 rpm. The engine is turbocharged-intercooled and water cooled. Typical duty is prime and standby generator sets; dry weight with flywheel and alternator is 945 Kg and the overall envelope is 2110mm*1102mm*1598mm.
Key Benefits
- Delivers 250 kW (335 HP) at 1500 rpm from 9.5L as a factory-rated assembly.
- Turbocharged-Intercooled induction with water cooling keeps charge temperature under control in continuous duty.
- Dry weight 945 Kg and envelope 2110mm*1102mm*1598mm are published so the installation can be checked before ordering.
- Starts without auxiliary aids down to -12℃.
- Backed by a written warranty of one year or 1000 hours, whichever comes first
- Genuine and OEM options quoted side by side so the budget decides, not the catalogue
Application Scenarios
- Prime mover for a new generator set build
- Standby set engine replacement
- Rental power fleet rebuild
- Containerised power module
Who It Is For
- Genset packagers matching an engine to an alternator
- Rental power companies rebuilding sets between contracts
- Industrial sites replacing the prime mover in an existing canopy
- Telecom and data infrastructure contractors specifying standby power
Problems It Solves
- An engine that does not hold speed under block load makes the whole set unusable.
- Packagers lose weeks when the engine does not match the alternator and the base frame.
- Standby sets sit idle for months and must still start and take load on demand.
- Identifying the right 6LTAA9.5-G3 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 | 6LTAA9.5-G3 |
| Type | 6 Cylinders in Line |
| Displacement | 9.5L |
| Bore x Stroke | 116 * 148 |
| Net Weight (with flywheel and alternator) | 945 Kg |
| Overall Dimension | 2110mm*1102mm*1598mm |
| Aspiration | Turbocharged-Intercooled |
| Compression Ratio | 16.6:1 Electrical System: 24V |
| Lowest Starting Temp (without auxiliary system) | -12℃ |
| Engine Cooling Fluid Volume | 34 L |
| Cooling Method | Water Cooled |
| Rated Power | 250 kW |
| Rated Speed | 1500 rpm |
| Standby Power | 280 kW/1500 rpm |
| Cylinders | 6 Cylinders in-line |
| Prime Power | 250 kW/335HP |
Technical Features
- Cylinders: 6 Cylinders in Line
- Displacement: 9.5L
- Bore and stroke: 116 * 148
- Aspiration: Turbocharged-Intercooled
- Compression ratio: 16.6:1 Electrical System: 24V
- Coolant capacity: 34 L
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 6LTAA9.5-G3 when ordering so the correct variant is supplied.
- Match the flywheel and SAE housing to the alternator before assembly
- Set the governor to the frequency required, 50 Hz or 60 Hz
- Run a load bank test before the set goes into service
- 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 250 kW (335 HP) on paper, but its running history is unknown and the warranty rarely covers the whole engine. |
| A larger engine in the same 6LTAA9.5 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. |
6LTAA9.5-G3 Questions
Is this 6LTAA9.5-G3 a genuine Cummins engine
What power does the 6LTAA9.5-G3 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 6LTAA9.5-G3
Send your serial number or nameplate photograph and we will confirm the configuration, then price genuine and OEM options side by side.


