Parts we list for the Cummins ISC / C8.3 engine, including fuel filters & water separators, injectors, pressure sensors, oil filters and NOx & aftertreatment sensors. Each part here names the Cummins ISC / C8.3 in its description, and most show the Cummins number they replace, so check the number on your old part before you order. Brands include PAI Industries, Fleetguard, Delco Remy and Cummins.