CARQUEST premium remanufactured injectors are completely torn down, ultrasonically cleaned, inspected and remanufactured using premium components. Each injector is 100% tested on a sophisticated flow bench under multiple operating parameters to meet or exceed OE specifications. Product Features:Each unit is 100% tested to OE specificationsIncludes 100% new nozzle to ensure precise fuel delivery under all operating parametersIncludes 100% replacement of solenoid to ensure precise fuel injection timingIncludes 100% replacement of plunger and barrel to improve longevity over competitive unitsIncludes all new premium quality O-rings and sealsIncludes application specific technical bulletin which highlights critical aspects of the job and offers technical tips for proper installation