NGK SPARK PLUG IMR9C-9H NG6777

NGK Iridium Platinum IX Spark Plug IMR9C-9H NG6777. Features an advanced iridium electrode 25% smaller than platinum and 1/4 the size of conventional nickel electrodes for enhanced performance. Ultra-small diameter center electrode reduces voltage requirements and extends ignition system life. Enhanced anti-corrosion properties with advanced metal shell plating. Fine wire iridium center electrode and platinum tapered cut ground electrode ensure long service life and improved performance. Sold individually. Heat Range 9, Thread Size 10 mm, Reach 19 mm (3/4"), Hex Size 5/8" (16 mm), Seat Type Gasket, Thread Length 12.7 mm (1/2") Half Threaded, Terminal Type Stud Terminal Threads, Tip Configuration Projected Tip, Gap .035" (0.9 mm). Type Resistor. Units Each. Weight 0.31 lbs. Alternate/OEM Part Numbers: 6777, IMR9C9H. Extreme Long Life Laser Iridium Features: Iridium Tipped Fine Wire Center Electrode for brighter and stronger spark with lower voltage requirements. Platinum Tipped Ground Electrode for durability, slow wear rate, and consistent performance. Trivalent Metal Plating protects against corrosion and seizing. Corrugated Ribs prevent flashover for reliable ignition. Pure Alumina Silicate Ceramic Insulator enhances strength and thermal transfer. Copper Core aids in efficient heat removal. Triple Seals prevent leakage, improving reliability and performance stability. Does not include terminal nut. If required, order part #067606-0051.