Bosch OEM Remanufactured and fully rebuilt LMM injectors using all new Bosch components (nozzles, control valves, armatures, etc.) These injectors are guaranteed meet or exceed specifications. Each injector includes all hardware necessary for installation (O-rings, copper crush washers). For proper installation of your new injectors, we recommend replacing the fuel crossover tubes & valve cover gasket. These injectors carry a two year warranty.