This OEM genuine Cummins injector is a brand new part that was direct from Cummins. Please refer to the part number: 5289266 for fitment. Other referable OEM part numbers are: 5289266PX, 5289266RX, 0445124019, 0 445 124 019, as well as the part numbers, please review all of the photos provided before making your purchase. Thank you for choosing EKG Diesel!