NGK Spark Plug - DP6EA9 Product Features: NGK offers a wide heat range by using copper wire instead of the iron cores found in many conventional plugs. Copper dissipates heat more quickly, cooling the electrode and insulator tip. Raised pre-ignition rating with high-conduction copper and long nose insulator. Meets the requirements of high-performance engines. Triple-gasket sealing process. Sold individually. Specifications: Heat Range: 6 Thread Size: 12 mm Type: Non-Resistor Units: Each Weight: 0.12 lbs Alternate/OEM Part Numbers: 1068, DP6EA9 Compatible Vehicles: Kawasaki Models: VN1500A Vulcan 88: 1987 VN1500B Vulcan 88 SE: 1987 Part Number: 37-DP6EA-9 NGK 1068 DP6EA-9 Nickel Spark Plug Key Features: Constructed for longer life and optimum performance. Trivalent Metal Plating: Provides superior anti-corrosion and anti-seizing properties. Additional Features: Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator for superior strength and better heat transfer. Copper core aids in heat removal. Triple seals prevent leakage. Plug Specifications: Thread Size: 12 mm Hex Size: 11/16" (17.5 mm) Reach: 19 mm (3/4") Seat Type: Gasket Gap: .036" (0.9 mm) Heat Range: 6 Terminal Type: Threaded Stud Resistor: No Thread Pitch: 1.25 mm Brand: NGK Center Electrode: Nickel