(Used) 2003 Cummins ISL, ENGINE ASSEMBLY- Family Number: 3CEXH0540LAB, Model: DR6239RX, Serial Number: 60314889, Part Number: 3948527PX, CPL: 8473, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASK HWY ELKTON, MD 21921