OceanSphereENGINES

12VW32

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

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍​​⁠⁠​‍​‍‌‌‌​⁠⁠‌​
12Cylinders
320 mmBore
400 mmStroke

This is a maritime diesel engine, specifically the Wärtsilä 12VW32. It is a powerful V-type, 4-stroke engine designed for marine applications. The 12VW32 boasts a substantial output of 4080 kW, achieved through its 12 cylinders, each with a bore of 320 mm and a stroke of 400 mm. The engine operates at a rotational speed of 750 rpm and is capable of utilizing both Heavy Fuel Oil (HFO) and Marine Diesel Oil (MDO) as fuel. The 12VW32 features turbocharging with an intercooler to enhance combustion efficiency. It complies with IMO Tier II emission standards, ensuring environmentally responsible operation. Wärtsilä designed the 12VW32 for robust performance and longevity, as evidenced by its "verified_workflow_2026-06" specification verification and its history of use since its redesign in 1996. The manufacturer discontinued production of this model around 2010, with approximately 720 engines manufactured.

Specifications

Technical data.

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Speed (rpm)750
Fuel TypeHFO/MDO
ConfigurationV
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