This Detroit Diesel S65 S Series Fuel Injector is a high-quality remanufactured product that is designed as a direct replacement for your vehicle's existing fuel injector. With a custom part number of R-5228566, this fuel injector is specifically designed to fit seamlessly into your diesel fuel system without any modification required. This item has been stored in a parts service center so box may show signs of storage wear. Shipped with UPS or USPS.