Product Features:Back Lash, Mesh Load, Leak and Rotational Torque QC testing performed on each unit.OEM cores are processed as individual units throughout the tear down and assembly processCores cleaned using our Hydro Blast cleaning and rinse processAll case halves wet sanded to ensure perfect mating surfacesLoctite gasket eliminator and primer used to seal all aluminum mating surfacesRemanufactured in our ISO9001:2008 USA facility.Without MotorFor questions, contact Product Support at 833-395-2290.