{"product_id":"ngk-2399-spark-plug","title":"NGK 2399 Spark Plug","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eNGK spark plug 2399 is a standard replacement plug built around OE-style construction and core materials. It is listed for select Kawasaki applications and uses a flat seat, copper center electrode core, and nickel electrode tips for consistent ignition performance.\u003c\/p\u003e\u003cp\u003eFits 1970-1971 Kawasaki F5, N\/A. Fits 1970-1971 Kawasaki F5 Big Horn, N\/A. Fits 1972-1975 Kawasaki F9, N\/A.\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 center electrode core with nickel tip material\u003c\/li\u003e\n\u003cli\u003eNickel ground electrode with standard configuration\u003c\/li\u003e\n\u003cli\u003e1-resistor design for ignition noise control\u003c\/li\u003e\n\u003cli\u003eFlat seat, 14 mm thread diameter, and 0.5 in reach\u003c\/li\u003e\n\u003cli\u003eRemovable nut terminal for common ignition lead setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNGK 2399, also identified by part number B10HS, is a standard spark plug engineered to match common service requirements for older motorcycle applications. Its 0.028 pre-gap, 13\/16 hex size, and standard ground electrode layout support straightforward replacement service, while the copper core and nickel electrode materials are selected for dependable spark delivery. This part number 2399 is listed for Kawasaki F5, Kawasaki F5 Big Horn, and Kawasaki F9 applications, making it a direct reference point when sourcing the correct NGK spark plug 2399 for those models.\u003c\/p\u003e\u003cp\u003eNGK’s OE supplier background and long-standing ignition focus are reflected in the product’s original-equipment-oriented construction. For buyers searching for a Kawasaki F5 spark plug, Kawasaki F5 Big Horn spark plug, or Kawasaki F9 spark plug, NGK 2399 provides a specification-driven replacement option with the dimensions and terminal style needed for matching service work.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHard starting caused by worn or fouled spark plugs\u003c\/li\u003e\n\u003cli\u003eWeak or inconsistent spark output\u003c\/li\u003e\n\u003cli\u003eMisfire symptoms related to plug wear\u003c\/li\u003e\n\u003cli\u003eService intervals that call for plug replacement\u003c\/li\u003e\n\u003cli\u003eIgnition noise concerns in resistor-equipped systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the thread diameter, reach, seat type, and terminal style before installation. Set the spark plug gap to the vehicle specification; the fitment notes list 0.040 inches for the listed applications. Confirm the correct heat range and compare the removed plug to the new NGK 2399 before final installation.\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 2399 reflects that OE-focused approach, with materials and dimensions selected for reliable service in the listed applications.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":53725760815285,"sku":"BCDP-2399","price":11.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NG_2399_Fro.jpg?v=1794209585","url":"https:\/\/www.partcatalog.com\/products\/ngk-2399-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}