6PCS Fuel Injector 5254261 5254261PX For Cummins 6.7L ISB QSB engines 0445120177. 0445120177, 5254261, 5254261NX, 5254261PX, 5254261RX. Fit for Cummins Engine: QSB 6.7L, ISB 6.7L,QSB 4.5L. This performance part can enhance your vehicle's performance and is a must-have for Cummins engine owners.
