{"product_id":"ngk-5583-spark-plug","title":"NGK 5583 Spark Plug","description":"\u003ch2\u003eNGK Racing Spark Plug 5583\u003c\/h2\u003e\u003cp\u003eThe NGK 5583 is a racing spark plug built around NGK’s OE manufacturing background and long-standing ignition expertise. It uses a copper core center electrode, nickel tip materials, and a pin-type ground electrode for consistent spark delivery in demanding applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRacing spark plug with NGK part number 5583\u003c\/li\u003e\n\u003cli\u003eCopper core center electrode for stable heat transfer\u003c\/li\u003e\n\u003cli\u003eNickel center and ground electrode tip materials\u003c\/li\u003e\n\u003cli\u003ePin-type ground electrode with slant configuration\u003c\/li\u003e\n\u003cli\u003eFlat seat, 14 mm thread diameter, 0.75 in reach\u003c\/li\u003e\n\u003cli\u003ePre-gapped to 0.024 in\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003ePart number 5583, also identified as R6254E-9, is a performance-oriented spark plug with a 1 ohm resistance value, a non-removable nut terminal, and a 9 heat range. The flat seat and 13\/16 in hex size support standard service fitment, while the copper core and nickel construction help maintain reliable ignition characteristics under racing conditions. This NGK spark plug is a direct fit for select Kawasaki KX250 applications, including 1992-1993 Kawasaki KX250 models.\u003c\/p\u003e\u003ch2\u003eCommon Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestoring ignition performance when the original plug is worn or fouled\u003c\/li\u003e\n\u003cli\u003eAddressing hard starting caused by an incorrect heat range or gap\u003c\/li\u003e\n\u003cli\u003eReplacing a plug with damaged electrodes or terminal wear\u003c\/li\u003e\n\u003cli\u003eMaintaining consistent spark in high-demand racing use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the specified gap before installation and confirm the heat range, thread diameter, reach, and seat type match the engine requirements. Use the listed fitment for 1992-1993 Kawasaki KX250, and confirm the KX250-J application note before installation. The part number 5583 should be matched to the engine specification, not just the thread size.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNGK is a major OE spark plug supplier in North America and manufactures ignition components to original equipment standards. Part number 5583 reflects that OE-focused engineering approach for dependable service in the correct application.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":53725764386997,"sku":"BCDP-5583","price":16.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NG_5583_Fro.jpg?v=1794209705","url":"https:\/\/www.partcatalog.com\/products\/ngk-5583-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}