Introducing the XDP XD355 High Output Alternator. This direct bolt-on alternator is designed for 2001-2007 Duramax trucks and produces 200 amps of power. It features a wrinkle black finish and is 100% brand new, with no core required. This alternator is the perfect upgrade for your Duramax truck, providing the extra power you need to run all your accessories and keep your battery charged. Don't be caught without power when you need it most, get the XDP XD355 High Output Alternator today!