Iifom zesakhiwo se-fuel injector pumps 3917002RX inokwahlulwa ibe ngamacandelo amabini: uhlobo lwegiya kunye nohlobo lwe-rotor. Iimpompo zesitofu segesi yegiya zahlulwe zaba luhlobo lwangaphakathi lwegiya kunye nodidi lwegiya yangaphandle. Le yokugqibela ibizwa ngokuba ziimpompo zesitofu segiya.