8L21/31

Designed with a four-stroke cycle and an integrated high-efficiency constant pressure turbocharging system, the MAN 8L21/31 GenSet is a reliable power source for marine applications. This engine runs on heavy fuel oil (HFO) and offers outstanding load pick-up capabilities, making it suitable for various maritime needs. The MAN 8L21/31 features a robust design with a long time between overhauls and minimal unscheduled maintenance, ensuring continuous operation. Its low fuel and lube oil consumption aligns with legal emission limits, including IMO Tier II standards, with the option to meet IMO Tier III through selective catalytic reduction (SCR). The engine’s compact dimensions and short installation length facilitate easy integration into existing systems. With a cylinder output of 220 kW at 900/1000 rpm, the MAN 8L21/31 delivers a power-to-weight ratio ranging from 18.4 to 22.5 kg/kW. The engine’s advanced features include a conventional main injection system and a variable injection system for optimized fuel consumption, as well as a pressurized air starter and integrated cooling systems. Optional equipment such as a 100% power take-off (PTO) on the front-end enhances its versatility for additional applications like fire-fighting equipment.