NGK Spark Plug, Individually Boxed NGK5246 3" x5" x2"

NGK Spark Plug, Individually Boxed NGK5246, Notes: NGK standard plugs are constructed for longer life and optimum performance., Notes 2: Trivalent metal plating provides superior anti-corrosion and anti-seizing properties, Notes 3: Corrugated ribs prevent flashover, Notes 4: Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer, Notes 5: Copper core aids in heat removal, Notes 9: Fits Stihl Replaces Bosch USR7AC to fit 4 Stroke., Notes 8: NGK CMR4H Spark Plug, Notes 6: Triple seals prevent leakage, Dim A (1): [Thread Pitch] 1.25mm, Dim B (2): [Seat Type] Gasket, Dim C (3): [Hex Size] 13/16" (21mm), Dim D (4): [Torque Specs] Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft., Material: Nickel, Thread Size: 14mm, Type: Standard, Quantity: 10, Replaces: Bosch USR7AC