White smoke? Hard Start? Missing or ticking noises? No start at all? It could be that you have 1 or more bad injectors. While common rail injectors are a necessity with today's engines to create the efficiency and power, they are also susceptible to wear more so than older, non-common rail injectors, as they are exposed to extremely high pressures. Replace your failed injector or injectors in your 6.7L Cummins with the XDP Remanufactured Injector. Each injector is meticulously remanufactured to meet the most recent design criteria resulting in a warranty rate less than 0.2 percent. XDP injectors offer consistent fuel supply and proper operation even in cold start conditions.