{"product_id":"ngk-6821-spark-plug","title":"NGK 6821 Spark Plug","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eNGK 6821 is a standard spark plug built for the 1986 Kawasaki EX250F Ninja 250R. It uses a copper core center electrode, nickel tip materials, and a standard ground electrode layout for consistent ignition performance. The flat seat and 0.028-inch pre-gap support direct replacement service on this application.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStandard spark plug design for routine ignition service\u003c\/li\u003e\n\u003cli\u003eCopper core center electrode for efficient heat transfer\u003c\/li\u003e\n\u003cli\u003eNickel center and ground electrode tip materials\u003c\/li\u003e\n\u003cli\u003eFlat seat construction with 0.5-inch reach\u003c\/li\u003e\n\u003cli\u003e1-resistor design with a 10 mm thread diameter\u003c\/li\u003e\n\u003cli\u003ePart number 6821, NGK C8HSA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eNGK 6821, also identified as C8HSA, is an OE-style spark plug engineered to meet original equipment standards. The standard ground configuration, stud terminal, and 5\/8-inch hex size make it a straightforward service part for ignition maintenance. This spark plug is specified for the Kawasaki EX250F Ninja 250R and is built to support stable combustion and reliable spark delivery in the correct application.\u003c\/p\u003e\u003ch2\u003eCommon Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn or fouled spark plug\u003c\/li\u003e\n\u003cli\u003eRestoring weak ignition performance\u003c\/li\u003e\n\u003cli\u003eAddressing hard starting caused by plug wear\u003c\/li\u003e\n\u003cli\u003eCorrecting misfire symptoms related to spark degradation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the thread diameter, reach, seat type, and pre-gap before installation. Confirm the application matches the Kawasaki EX250F Ninja 250R and use the specified gap setting for the engine. The part number 6821 should be checked against the existing plug specification before service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNGK is a major OE spark plug supplier in North America with more than 80 years of automotive experience. Its manufacturing and distribution network supports original equipment standards for durability and operational performance.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":53725766353077,"sku":"BCDP-6821","price":11.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NG_6821_Fro.jpg?v=1794209757","url":"https:\/\/www.partcatalog.com\/products\/ngk-6821-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}