The Carquest 11577A Alternator is a OEM remanufactured part designed for Toyota Corolla and Matrix models from 2011-2013. With a voltage of 12V and an amperage of 100A, this alternator is a reliable option for maintaining the electrical systems of your vehicle. It is compatible with OE/OEM part numbers 270600T130, 2706037081, 27060-0T130, and 27060-37081, and is a high-quality product that meets or exceeds original equipment specifications.