Hyundai alternator is an essential component in a car engine's electrical system. In essence a car's alternator charges the battery and powers the car's electrical system when its engine is running.It is a component that can sometimes fail and your engine may appear dead if it does. Eurocarparts.com offers Hyundai Alternatorsat competitive prices. A car alternator is an essential component in a car engine and needs to be checked and replaced when needed.