2003 Caterpillar 3126, , Engine Assys, Fits to: Other Other, (USED) 2003 Caterpillar 3126. S/N-HEP25127 P/N-3CPXH0442HBX HP-246 CPL-224-7984 ECS-EM, DI, TC, ECM, CAC, CAT. C.I.D-7.2L For more information about this item call. We ship worldwide. 929 W Pulaski Hwy Elkton, MD 21921, Horse Power 246, Serial# HEP25127, Casting# HEP25127