Piston Ring Size (Metric Units):See options aboveFitment Type:Direct ReplacementOE Spec or Performance/Custom:OE SpecPlacement on Vehicle:FrontManufacturer Part Number:DG-0664467305OE/OEM Part Number:68231951ADMaterial:Premium Steel Material Piston RingsMeasurement:Standard Bore Diameter 88.00mm; Height: 1.20mm x 1.20mm x 2.00mmManufacturer Warranty:YesKit Parts Included:Engine Piston Ring Set; Engine Piston RingsBrand:MahleItems Included:Piston RingsKit or Single Part:KitInterchange Part Number:68165801AA, 68231951ABGreasable or Sealed:JapanType:Engine Piston Ring Set; Engine Piston Rings