V12 power born from years of experience with the latest technology

Since the 12LA and 16LA series engines were first sold in 1980’s, Yanmar has supplied more than 2,500 of them around the world. Based on this success and further research and testing, Yanmar have developed the new 12AY series - a reliable, high-performance V12 engine reborn as our 1,000 hp-plus high-power model. We use the same proven technology from our best-selling 6AY series, meeting IMO Tier ll exhaust emission standards without electronic engine control. With its stable high torque, this engine features a prolonged lifecycle design that boasts low NOx and fuel consumption thanks to a new and efficient combustion method, improved durability, and Yanmar’s famous easy and hassle free maintenance.