OceanSphereFree accountLog inDEENPL
OceanSphereENGINES
Library› Engine Room› Main Engines (4-Stroke)› Main Engine 4-Stroke› Wärtsilä 10LW50DF

10LW50DF

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

Class-certified type (DNV register) · technical data sheet not yet verified
9,500 kWPower
10Cylinders
500 mmBore
580 mmStroke

Reliable operation and maintainability are key considerations for marine engines, and the Wärtsilä 10LW50DF is designed with these factors in mind. This engine boasts a powerful 9500 kW output, driven by a dual-fuel system capable of utilizing both LNG and HFO. Its robust design features a 4-stroke, L-configuration with 10 cylinders, each delivering 610 kW of power in diesel mode. The 10LW50DF's specifications include a bore of 500 mm, a stroke of 580 mm, and a rotational speed of 514 rpm. Two-stage turbocharging with intercooling and common rail direct injection contribute to its efficient performance, with a Mean Effective Pressure (BMEP) of 30 bar and a Specific Fuel Oil Consumption (SFOC) of 167.7 g/kWh at its optimal point. The engine's weight, dry and in diesel mode, is approximately 57.1 tonnes for the 8V31 configuration and 89-92.5 tonnes for the 16V31.

Specifications

Technical data.reference — unverified

Cylinder power610 kW/cyl (diesel)
Mean effective pressure (BMEP)30 bar
SFOC (diesel)167.7 g/kWh (optimal point)
Weight (8V31)~57.1 tonnes (dry, diesel)
Weight (16V31)~89–92.5 tonnes (dry, diesel)
Piston speed10.75 m/s
TurbochargingTwo-stage turbocharging with intercooling
Fuel injectionCommon rail direct injection
Valve layout2 inlet, 2 exhaust valves per cylinder
Power (kW)9500
Speed (rpm)514
Fuel TypeLNG/HFO (Dual-Fuel)
ConfigurationL
Need this part?

Request a quote for this model.

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

Makers and authorised dealers rarely quote marine equipment without the vessel. With these details we can check availability and prices faster; without them we may have to ask first, which can cost a few days. If you cannot share the vessel, a photo of the equipment’s rating plate does the same job — 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, Wärtsilä first.

By manufacturer MAN Energy SolutionsWärtsiläCaterpillarHiMSENMTUVolvo PentaYanmar Power Technology Co., Ltd.HanshinDaihatsuPielstickMaK (Caterpillar)Rolls-Royce / BergenCaterpillar MaKCumminsMAN Truck & Bus SEAll manufacturersSpare parts by equipmentNew here? Create a free account Can't read the plate? Try the nameplate scanner All Wärtsilä models More like 10LW50DF
Would you like to know more?

A person reads every request and replies by e-mail.

Tell us what you need for this Wärtsilä 10LW50DF — a part, a service call, a second opinion. Are you Wärtsilä? Claim this brand page.

Service engineer? Write the day report for this 10LW50DF in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →

Frequently asked

Three things people ask first.

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.