Bosch AL4076N / 0986UN0435 New Alternator Premium 100 percent new Alternator Built for extremes All Bosch Alternators are designed to perform equal to or better than the original equipment parts, that they replace All Bosch Alternators are designed to be identical in fit and performance to original equipment parts Bosch Alternators are 100 percent factory tested to ensure reliable performance, under extremes of heat, cold and high demand