For Cummins ISX15 QSX15 Diesel Engine 6Pcs Fuel Injector 5579415PX 2872405. Fit For Cummins Engine ISX15 QSX15 (6 Cylinder). Package included: 6Fuel Injector. Installation guide NOT included, professional skills required during the installation, we highly recommend asking repair shop for help. Due to different displays and light variations, all pictures shown may not reflect the actual color or condition of the item. For example, Laser Pointer is unacceptable in some countries. There are NO EXCEPTIONS! OR, you may choose to have a replacement.