... 4 SVoltage modulation≤0.3% The specifications of engine: Model4B3.9-G, 4BT3.9-G,4BTA3 ... 2. Starting system: DC alternator is used to start the engine 3. Short circuit protection: MCCB air ... ,muffler, 7. Supply standard collocation: a) diesel engine with all accessories,3 filter,electric systems b)alternator ... connector f)12/24V starting motor and charge engine g) air cleaner, fuel cleaner, oil clearner ...