Almost every circuit on the Painless 10110 Jeep CJ wiring harness is pre-terminated at both ends. All wires are color coded and labeled and all wire leads are pre-cut to proper lenghts. Our harness uses an OEM style bulkhead connector that attaches to the bulkhead without any special brackets or modifications. The blade type fuse block is pre-terminated and machine crimped. The most painless way to wire your 75-86 CJ series jeep. Note: Painless 10110 12 Circuit Wiring Harness is not equipped for computer controls nor is it engine specific. Water temp sensor, oil gauge sender, alternator, starter solenoid, tach lead, ballast resistor and fuel tank sender are not pre-terminated.