Premier Gear PG-15017 Professional Grade New Generator Provides protection from excessive charging or failure due to shorts in your car's wiring that can cause spikes or open circuits Consistent performance from manufacturing processes that exceed your vehicle's original specifications for wiring, bearings and components helping to resist heat and moisture Longer life of the generator through the use of premium brushes and other critical components that resist failure or poor performance Lucas 22 Amp/12 Volt