CUMMINS-ISB-QSB-INJECTOR-WIRING-HARNESS

3287699 is the injector wiring harness for Cummins ISB and QSB common-rail engines, carrying the precise electrical signal from the ECU to each injector solenoid. On common-rail systems this harness is more safety-critical than it looks — chafed insulation or a corroded connector here can cause misfires or a cylinder cutting out entirely, and because the wiring runs close to the hot side of the engine, heat-damaged insulation is the most common failure mode. Orange.net.za dispatches fast, South Africa-wide.