The Volvo Penta TAD734GE diesel engine is a common rail EFI, turbocharged and air-cooled inline 6-cylinder, 7.15-liter displacement, 4-stroke diesel generator set engine. TAD734GE is a two-speed engine, with two speed modes of 50hz / 1500 rpm and 60hz / 1800 rpm, used for main and standby power generation.