Main Engine 4-Stroke · Main Engines (4-Stroke)
The Wärtsilä 12VW34SG is a 12‑cylinder V‑type spark‑ignited marine gas engine delivering up to 8 MW (8000 kW) at 750 rpm, designed for low‑emission main propulsion or high‑power auxiliary generation using natural gas, biogas or hydrogen blends.
Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.
Free of charge — send us your request for Wärtsilä equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, Wärtsilä first.
Tell us what you need for this Wärtsilä 12VW34SG — a part, a service call, a second opinion. Are you Wärtsilä? Claim this brand page.
Service engineer? Write the day report for this 12VW34SG in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
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.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.