Reman Multi Port Fuel Injector. Fuel Injector. The engine types may include 4.2L 256Cu. l6 GAS DOHC Naturally Aspirated. This part fits vehicles made in the follow ing years 2002,2003,2004. Obviously, the core won't be working well (or you wouldn't have replaced it) but it can't be smashed, rusted solid, or otherwise unusable.