Marine Engine
Cummins 6LTAA8.9 Marine Diesel Engine (268–315 hp)
Cummins 6LTAA8.9 6-cylinder diesel engine, 268–315 hp (200–230 kW), 4 ratings for marine work. Each unit nameplate-verified.
Specifications
- Engine Model
- 6LTAA8.9-GM200 ~ M315
- Cylinders & Configuration
- Inline 6, 4-cycle
- Rated Power Range
- 200–230 kW (268–315 hp) @ 1500–1800 rpm
- Aspiration
- Turbocharged & Air-Air Aftercooled
- Applications
- Marine
- Documentation
- Nameplate verification + load-test record per serial number
Overview
The Cummins 6LTAA8.9 is a 6-cylinder Cummins diesel engine supplied in 4 factory ratings from 268 hp (200 kW) to 315 hp (230 kW). Every rating listed on this page is a complete engine for marine duty, not a generator set, and each unit ships with its serial number recorded against the specification sheet that applies to it.
Ratings in this family differ in rated speed, peak torque and emissions tier rather than in displacement or cylinder count, so the choice between them is a duty-matching question. The specifications panel and the per-rating entries on this page are generated from the same source data, so a rating quoted here can be matched directly against a delivery document.
Specifications
The specifications panel lists the family-level values that are common to every 6LTAA8.9 rating. Ratings that share displacement and cylinder count but differ in output are listed individually in the model selection section.
Model Selection: 6LTAA8.9 Ratings
Each entry in this section is one rating of the Cummins 6LTAA8.9. The rated power is the output at the stated speed; the peak torque figure is the value the rating develops at the lower speed shown, which is what normally decides whether a rating suits a given machine. Each rating carries a stable anchor, so a single rating can be linked or quoted directly.
6LTAA8.9-GM200
6LTAA8.9-GM200 — rated 200 kW (268 hp) at 1500 rpm; peak torque 220 N·m at 1500 rpm.
6LTAA8.9-GM215
6LTAA8.9-GM215 — rated 215 kW (288 hp) at 1800 rpm; peak torque 237 N·m at 1800 rpm.
6LTAA8.9-M300
6LTAA8.9-M300 — rated 224 kW (300 hp) at 1800 rpm; peak torque 245 N·m at 1885 rpm.
6LTAA8.9-M315
6LTAA8.9-M315 — rated 230 kW (315 hp) at 1800 rpm; peak torque 253 N·m at 1885 rpm.
Applications
6LTAA8.9 engines in this family are normally specified for marine work.
Marine: ratings are quoted against the propulsion or auxiliary duty required, with the gearbox ratio and the duty classification taken into account.
Verification, Documentation and Ordering
Each engine is offered with nameplate verification + load-test record per serial number. That means the model and rating printed on the engine nameplate can be checked against the record issued for that serial number before shipment, which is the point most buyers of re-rated or re-exported engines want covered.
To receive a quotation, send the exact rating from the matrix above (for example 6LTAA8.9-M315), the machine or application it will drive, the quantity, and the destination port. If the rating you need is not listed, send the model and the required output and we will confirm whether it belongs to this family or to a neighbouring one.
Buyer tip: Send your 6LTAA8.9 specification, quantity and destination port for a verified quotation and lead time.
Frequently Asked Questions
What is the power range of the 6LTAA8.9?
The 4 ratings listed on this page run from 268 hp (200 kW) to 315 hp (230 kW), at governed speeds between 1500 and 1800 rpm.
What is the difference between 6LTAA8.9-M300 and 6LTAA8.9-M315?
6LTAA8.9-M300 is rated 224 kW (300 hp) at 1800 rpm with peak torque of 245 N·m, while 6LTAA8.9-M315 is rated 230 kW (315 hp) at 1800 rpm with 253 N·m. They use the same base engine; the higher rating is the one to specify when the driven load needs the extra torque at the lower speed.
How is a 6LTAA8.9 rating ordered?
Send the exact rating shown in the model selection table, the application it will drive, the quantity and the destination port. The engine is then quoted against that rating and confirmed against its nameplate and load-test record.
