Replace the weak factory alternator in your 2017-2019 Chevy/GMC 6.6L L5P Duramax with a high-quality upgrade. In most applications, the alternators offered feature a direct-fit installation with no modifications required. They are engineered to mount in the factory location and re-use the stock belt and electrical connections. High-output Alternators are available that offer up to twice the amps of the factory units they replace. Rest assured knowing that you will be able to keep the battery fully charged, regardless of your increased power requirements. When you begin adding electrical accessories to your truck, the charging system can start lacking. Additional equipment such as auxiliary lighting, winches, and snowplows draw significantly more power than your factory charging system can support. Shop leading manufacturers such as Mean Green, XDP, and Leece-Neville today and provide a much needed boost to your charging and electrical system!