For Citroen Diesel Fuel Injector Automotive Parts 0445110311 Diesel Common Rail Fuel Injector Lifespan; Gives you confidence in the lifespan and performance of critical engine components. Improved Fuel Efficiency; Fuel injector nozzles enhance your vehicle's performance. Functions: Effectively reduces engine knock and unstable idling Safe and stable operation: Ensures safe and stable operation under various driving conditions, Manufacturer: PIANYU