OceanSphereFree accountLog inDEENPL
OceanSphereENGINES
Library› Engine Room› Main Engines (4-Stroke)› Main Engine 4-Stroke› Wärtsilä 8LW32 Ammonia

8LW32 Ammonia

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

Class-certified type (DNV register) · technical data sheet not yet verified
2,480 kWPower
8Cylinders
320 mmBore
400 mmStroke

Diesel engines like the Wärtsilä 8LW32 Ammonia are commonly found in large ships and power plants where reliable and efficient power generation is critical. This engine is designed to run on ammonia and marine diesel oil (MDO) in a dual-fuel configuration, offering a cleaner alternative to traditional heavy fuel oil (HFO) operations. With an output of 2480 kW at 750 RPM, it is well-suited for marine propulsion and power generation applications. The engine features a 4-stroke, non-reversible, turbocharged, and intercooled design with direct fuel injection. Each cylinder has a displacement of 32.2 liters and is equipped with two inlet and two exhaust valves. Seawater and freshwater cooling systems, along with charge air cooling, ensure optimal performance and durability. Common maintenance issues include fuel rack stickiness when operating on heavy fuel oil, wear on exhaust valve seats due to high exhaust temperatures, and camshaft gear wear during major overhauls. Proper monitoring and adherence to maintenance schedules are crucial for long-term reliability.

Specifications

Technical data.from datasheet

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

Displacement per cylinder32.2 liters
Specific power output (inline)580 kW/cylinder (at 750 RPM)
Specific power output (V-config)500-420 kW/cylinder (W32GD: 405-420 kW/cyl)
Configuration4-stroke, non-reversible, turbocharged, intercooled, direct fuel injection
Valves per cylinder2 inlet + 2 exhaust
Cooling systemSeawater and freshwater cooling; charge air cooling via cooler
TurbochargerNapier 357 (common); Wärtsilä turbocharger safety package available
ComplianceIMO Tier II (MARPOL 73/78 Annex VI)
Power (kW)2480
Speed (rpm)750
Fuel TypeAmmonia/MDO (Dual-Fuel)
ConfigurationL
📄
Download datasheet (PDF) (27482 KB)
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 — 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, 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 8LW32 Ammonia
Would you like to know more?

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

Tell us what you need for this Wärtsilä 8LW32 Ammonia — a part, a service call, a second opinion. Are you Wärtsilä? Claim this brand page.

Service engineer? Write the day report for this 8LW32 Ammonia 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.