For Diesel Common Rail Injector 0445120002 Automobile Nozzle 0986435501 Enhances fuel efficiency and power output delivering a smoother and more responsive driving experience. Economy; These fuel injectors precisely inject fuel and air resulting in smoother engine operation improved fuel efficiency and economy. Improved fuel efficiency: Helps reduce fuel consumption and save on daily driving costs Effectively improved throttle response: Makes acceleration more linear and the driving experience smoother, Manufacturer: TENGFEIBAIHUO