XDP Remanufactured 7.3L AD Fuel Injector XD474 For 1999.5-2003 Ford 7.3L PowerstrokeThe XDP Remanufactured 7. 3L AD Fuel Injector By XD474 will replace the failed injector in your 1999. 5 2003 Ford 7. 3L Powerstroke. With over 30 million injectors in use and years of product engineering, you can be sure this injector a superior quality product. These injectors have under 0. 2 percent warranty rate due to surpassing the manufacturers' most current design specifications. Every injector is comprehensively tested for opening operation