Maintain OE-style fuel system function in your 2001-2004 Chevy/GMC 6.6 LB7 Duramax with Stock Replacement LB7 Fuel Injectors from XDP. XDP has the LB7 Duramax Injectors your vehicle needs, along with their own line of quality remanufactured injectors XDP carries Duramax LB7 injectors from top brands such as DDP, Alliant Power, Bostech, BD-Power, and many more. To ensure solid and reliable performance, remanufactured fuel injectors go through an extensive remanufacturing process that includes rigorous testing and the replacement of wear parts and seals. Stock Replacement fuel injectors are engineered to deliver factory-style form, fit, and function, as they are built to stringent guidelines that meet or exceed the original specifications. Brand new fuel injectors are built with quality components and thoroughly tested and inspected to ensure reliable performance.