2011 Cummins ISX15, Truck Tractor, Wiring Harnesses, Fits to: Peterbilt 386, (USED) 2011 PETERBILT 386-ENGINE WIRING HARNESS FOR CUMMINS ISX15. COMPLETE HARNESS FROM BODY TO ECM AND STARTER. To find out more about this part, give us a call. We ship worldwide! Complete Recycling Group (CRG), Serial# 60810616, Casting# 60810616, Truck Year 2011 1XPHD49X9BD120789