0 Cummins ISX, , ECMs, Fits to: , (Used) 2006 Cummins ISX, ENGINE ECM- Part Number: P3684009-RX Serial Number: A27009374, DC: 2111, Engine Information- Horsepower: 450, Serial Number: 60804027, Part Number: 4018419, (3 Plugs) 4 Pins Plug Rectangular, 60 Pins Plug Rectangular, 50, Pins Plug Rectangular, Stock #P-29287 Reference images for condition. For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Serial# A27009374, Casting# A27009374, Part# P3684009-RX