Main Engine 4-Stroke · Main Engines (4-Stroke)
On board marine vessels, engineers rely on highly efficient and versatile propulsion systems to ensure optimal performance and cost-effectiveness. One such system is the MAN 7L35/44DF, which offers dual-fuel flexibility, allowing operators to switch between diesel and gas based on fuel availability and prices. This engine is built on the proven reliability of MAN’s 32/44CR engine, featuring MAN’s proprietary adaptive combustion control (ACC) electronics, which ensures optimal performance in both diesel and gas modes. The MAN 7L35/44DF provides high efficiency and a wide CPP operating map, enabling highly dynamic operation. It boasts a power-to-weight ratio of 11.8 to 13.6 kg/kW, with a swept volume per cylinder of 42.3 dm³, and is compliant with IMO Tier II and Tier III emission regulations (with MAN SCR). The engine’s dimensions range from 6,485 mm to 8,605 mm in length and 2,539 mm to 2,678 mm in width, with a dry mass of 4,369 tons. It is designed for ease of maintenance and narrow engine rooms, with resilient or rigid mounting options available.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
Free of charge — send us your request for MAN Energy Solutions equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, MAN Energy Solutions first.
Tell us what you need for this MAN Energy Solutions 7L35/44DF — a part, a service call, a second opinion. Are you MAN Energy Solutions? Claim this brand page.
Service engineer? Write the day report for this 7L35/44DF 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.