{"product_id":"laser-iridium-spark-plug-18","title":"Laser Iridium Spark Plug","description":"The NGK DF8H-11B Laser Iridium spark plug features a high-melting-point iridium alloy center electrode designed specifically for performance-oriented engines. This fine-wire construction, paired with a tapered-cut platinum ground electrode, ensures high durability and a consistently stable spark under demanding conditions. The design utilizes an extended projection to optimize ignitability, making it a reliable choice for high-output applications.\n\nBuilt to withstand rigorous environments, this spark plug includes trivalent metal plating that provides superior anti-corrosion and anti-seizing properties for easier removal. The plug incorporates a pure alumina silicate ceramic insulator for increased strength and enhanced heat transfer, while a copper core facilitates efficient heat removal from the combustion chamber. Corrugated ribs are integrated into the insulator to help prevent flashover.\n\nWith a 12mm thread diameter, 1.25mm thread pitch, and a 26.5mm reach, this plug uses a gasket seat and features a solid terminal. The assembly includes triple seals to prevent combustion gas leakage, ensuring consistent performance over its 100,000-mile service interval. Torque specifications are 10.8-18 lb. ft. for cast iron heads and 10.8-14.5 lb. ft. for aluminum heads.","brand":"NGK","offers":[{"title":"Default Title","offer_id":52663101686072,"sku":"DF8H-11B","price":19.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687072591.jpg?v=1784323826","url":"https:\/\/store.motormia.co\/products\/laser-iridium-spark-plug-18","provider":"MOTORMIA","version":"1.0","type":"link"}