NPR OE piston rings for gasoline and diesel engines, are developed for automobile, light commercial vehicle and heavy-duty applications. NPR ring sets are designed to meet high speed use and high durability. Steel material is adopted on 1st ring and 2 piece oil ring. Nitriding or PVD treatment is made on 1st ring and oil ring. Product Features:Maximum durabilityHigh wear and corrosion resistanceExcellent heat-conducting capacityOptimal fit
