LH Series 118â177kW (116â240HP) Tough, reliable, compact and with outstanding power-to-weight benefits, these four-cylinder direct injection Yanmars in the LH Series include sterndrive models. The turbocharger has a wastegate boost compensator to improve acceleration still further. LH Series 4LHAM-STP (240HP/177kW) Tough and dependable high-output four-cylinder diesel, turbocharged and aftercooled. Develops 240HP (177kW) at 3,300 rpm. Supplied as bob-tail unit so that you can choose your transmission type.Specification: