Piston Rings - Maxseal - Gapless Top Ring - 4.125 in Bore - File Fit - 0.043 in x 0.043 in x 3.0 mm Thick - Low Tension - Steel - Chromium Nitride - 8-Cylinder - Kit Brand- TOTAL SEAL MPN MS9010 5 . **NOTE: Truck Freight- NO State Restrictions Canada Restrictions- NO