injection nozzle, truck The cutaway models shows a particularly large truck injection nozzle with nozzle holder. Function of the nozzle holder, nozzle, nozzle needle, pressure pin and pressure spring. Function of the inlet and return ducts. description ordernumber 1227 see also: mixture control unit of KE-Jetronic air-flow sensor with platinum heating filament Injection timing device, in-line pump cylinder block with wet liners