{"product_id":"ngk-6259-spark-plug","title":"NGK 6259 Spark Plug","description":"\u003ch2\u003eRacing Spark Plug Overview\u003c\/h2\u003e\u003cp\u003eNGK 6259 is a racing spark plug built for the 1996-2000 Suzuki RM250 and other confirmed applications in the same fitment range. It combines a platinum center electrode, nickel ground electrode, and a 5,000 ohm resistor for stable ignition performance. The NGK 6259 is identified by stock number 6259 and part number R6918B-7.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePlatinum center electrode tip for consistent spark delivery.\u003c\/li\u003e\n\u003cli\u003eNickel ground electrode with a pin-type tip design.\u003c\/li\u003e\n\u003cli\u003e5,000 ohm resistor helps control electrical noise.\u003c\/li\u003e\n\u003cli\u003eFlat seat, 14 mm thread diameter, and 0.75 inch reach.\u003c\/li\u003e\n\u003cli\u003ePre-gapped to 0.024 inches for the listed application.\u003c\/li\u003e\n\u003cli\u003eNon-removable nut terminal and 13\/16 inch hex size.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis NGK spark plug is engineered with a copper core center electrode and a slant ground configuration to support reliable combustion under demanding operating conditions. The heat range 7 design, platinum tip material, and single ground electrode configuration make it a fit for riders looking for a precise replacement spark plug for the Suzuki RM250. NGK 6259 and R6918B-7 are the identifiers to reference when matching this part.\u003c\/p\u003e\u003ch2\u003eCommon Issues It Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHard starting caused by worn or fouled spark plugs.\u003c\/li\u003e\n\u003cli\u003eWeak ignition performance from an aging plug.\u003c\/li\u003e\n\u003cli\u003eInconsistent spark delivery under load.\u003c\/li\u003e\n\u003cli\u003eMisfire concerns related to plug wear or incorrect gap.\u003c\/li\u003e\n\u003cli\u003eElectrical interference control through resistor-equipped design.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the thread diameter, reach, seat type, and pre-gap before installation. Use the specified 0.024 inch gap for the listed fitment and confirm the terminal style matches the ignition lead. For best results, compare the existing plug to NGK 6259 and R6918B-7 before installation.\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 standards are built around original equipment durability and consistent operational performance.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":53609850503349,"sku":"BCDP-6259","price":54.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NG_6259_Fro.jpg?v=1793084569","url":"https:\/\/www.partcatalog.com\/products\/ngk-6259-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}