OceanSphereENGINES
Library› Engine Room› Main Engines (4-Stroke)› Main Engine 4-Stroke› Rolls-Royce / Bergen 6LC25:33

6LC25:33

Main Engine 4-Stroke · Main Engines (4-Stroke)

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍​‍⁠​⁠⁠‍​‌‌‍​‌⁠⁠⁠
1,680 kWPower
6Cylinders
250 mmBore
330 mmStroke

Designed for robust performance and minimal downtime, Rolls-Royce's Bergen 6LC25:33 engine delivers exceptional reliability in demanding marine environments. With a powerful output of 3170 kW, this model is engineered to meet the high standards required by modern maritime operations. The weight of the engine varies depending on the specific configuration; for instance, the B33:45L6 A variant weighs 66200 kg, while the B33:45L8 A and B33:45L9 A configurations weigh 87500 kg and 92400 kg, respectively. These precise specifications ensure that operators can select the optimal engine for their vessel's needs, balancing power with weight considerations to achieve efficient performance and operational flexibility. Rolls-Royce’s commitment to quality and reliability is evident in every aspect of the 6LC25:33, making it a trusted choice for marine applications worldwide.

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

Bmep25 bar @ 750 rpm (Propulsion), 26 bar @ 720 rpm (Genset)
SFOC (100% MCR)171-177 g/kWh (MDO basis, varies by cylinders)
SFOC (85% MCR)173-175 g/kWh
Lube Oil Consumption0.5 g/kWh
Mean Piston Speed11.2 m/s (@ 750 rpm), 10.8 m/s (@ 720 rpm)
Dry Weight L6P42,400 kg
Dry Weight L8P53,500 kg
Dry Weight L9P56,400 kg
Dry Weight V12P71,867 kg
Genset Weight L6A48,300 kg (engine only)
Genset Weight L8A60,600 kg (engine only)
Genset Weight L9A62,400 kg (engine only)
Engine Type4-stroke, turbocharged with 2-stage charge air cooler
Service IntervalsExtended up to 25,000 hours
IMO ComplianceTier II (standard), Tier III (with SCR)
Electrical Output L6 50Hz3,515 kW genset
Electrical Output L8 50Hz4,690 kW genset
Electrical Output L9 50Hz5,285 kW genset
Electrical Output V12 60Hz6,750 kW genset
Electrical Output V12 50Hz7,050 kW genset
Weight (kg){'B33:45L6 A': 66200, 'B33:45L8 A': 87500, 'B33:45L9 A': 92400} kg🔖
Power (kW)1680
Speed (rpm)900
Fuel TypeHFO/MDO
ConfigurationL
📄
Download datasheet (PDF) (673 KB)
Need this part?

Request a quote for this model.

Free of charge — send us your request for Rolls-Royce / Bergen equipment. Our team checks it and replies by e-mail.

For marine equipment hardly any maker or authorised dealer will name a price while the vessel is unknown. With the vessel details, availability and price can be settled faster; without them we may have to ask first, which costs a few days. If you are not allowed to name the vessel, a photo of the rating plate is enough — attach it below or send it as a reply to our confirmation e-mail.

Your contact details are not published. No account required.
Related models

Also in Main Engine 4-Stroke.

Other models of the same equipment type, Rolls-Royce / Bergen first.

By manufacturer MAN Energy SolutionsWärtsiläCaterpillarHiMSENMTUVolvo PentaYanmar Power Technology Co., Ltd.HanshinDaihatsuPielstickMaK (Caterpillar)Rolls-Royce / BergenCaterpillar MaKCumminsBaudouinAll manufacturersSpare parts by equipmentNew here? Create a free account Can't read the plate? Try the nameplate scanner All Rolls-Royce / Bergen models More like 6LC25:33
More than the data sheet shows

We answer by e-mail, never with an automatic reply.

Tell us what you need for this Rolls-Royce / Bergen 6LC25:33 — a part, a service call, a second opinion. Are you Rolls-Royce / Bergen? Claim this brand page.

Service engineer? Write the day report for this 6LC25:33 in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →

Frequently asked

Questions that come up with this equipment.

Is this model's data free?

Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.

Can you find a part for this exact model?

Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.

The specifications look wrong — what now?

Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.