{"product_id":"ngk-silmar9a9s-honda-crf450rx-2017on","title":"NGK SILMAR9A9S – Honda CRF450RX 2017–On","description":"\u003ch2\u003eNGK SILMAR9A9S – Honda CRF450RX 2017–On\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003e1 genuine NGK SILMAR9A9S Laser Iridium spark plug\u003c\/strong\u003e for the listed Honda CRF450 application.\u003c\/p\u003e\u003ch3\u003ePrimary Fitment\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHonda CRF450RX\u003c\/strong\u003e, 2017–On.\u003c\/p\u003e\u003cp\u003eNGK's current CRF450 application page includes CRF450RX with SILMAR9A9S \/ stock 6213. Honda introduced the CRF450RX for model year 2017.\u003c\/p\u003e\u003ch3\u003eNGK Specification\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNGK part number: \u003cstrong\u003eSILMAR9A9S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNGK stock number: \u003cstrong\u003e6213\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTechnology: Laser Iridium\u003c\/li\u003e\n\u003cli\u003eWrench \/ hex size: 14 mm\u003c\/li\u003e\n\u003cli\u003eThread diameter: 10 mm\u003c\/li\u003e\n\u003cli\u003eThread reach: 26.5 mm\u003c\/li\u003e\n\u003cli\u003eNGK catalogue spark gap: 0.9 mm\u003c\/li\u003e\n\u003cli\u003eNGK application note: racing use \/ optional on the current EMEA catalogue\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHonda OE \/ Cross-Reference\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003e31909-MEN-A31\u003c\/strong\u003e is retained from the original product data as a Honda spark-plug cross-reference for SILMAR9A9S. Because I could not locate a current Honda primary online parts page for this number, confirm it against the motorcycle's VIN, Honda parts catalogue or fitted plug before ordering.\u003c\/p\u003e\u003ch3\u003eDENSO Cross-Reference\u003c\/h3\u003e\u003cp\u003eDENSO's current NGK cross-reference table lists SILMAR9A9S but does not provide a direct DENSO standard, Iridium Power or Iridium Tough replacement.\u003c\/p\u003e\u003ch3\u003eOther Verified Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHonda CRF450R — 2009–On — 1 plug\u003c\/li\u003e\n\u003cli\u003eHonda CRF450RX — 2017–On — 1 plug\u003c\/li\u003e\n\u003cli\u003eHonda CRF450RWE Works Edition — 2019–2026 — 1 plug\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility Check\u003c\/h3\u003e\u003cp\u003eConfirm \u003cstrong\u003eSILMAR9A9S\u003c\/strong\u003e \/ stock \u003cstrong\u003e6213\u003c\/strong\u003e, exact CRF450 model and model year before ordering. CRF450R, CRF450RX and CRF450RWE are different competition models and their model-year ranges should not be treated as interchangeable.\u003c\/p\u003e\u003ch3\u003eGoogle Search Terms \/ Product Identifiers\u003c\/h3\u003e\u003cp\u003eNGK SILMAR9A9S, NGK 6213, Honda 31909-MEN-A31, Honda CRF450R spark plug, Honda CRF450RX spark plug, Honda CRF450RWE spark plug, CRF450 spark plug, Laser Iridium motorcycle spark plug, 10mm racing spark plug.\u003c\/p\u003e\u003ch3\u003eDelivery \u0026amp; Returns\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFree UK delivery with an estimated 2–3 working-day service\u003c\/li\u003e\n\u003cli\u003e30-day returns, subject to the item being returned in its original condition\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":57372927820151,"sku":"SILMAR9A9S","price":20.0,"currency_code":"SHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0528\/8771\/6007\/files\/20260719_171405.jpg?v=1786599240","url":"https:\/\/www.motomaniauk.com\/products\/ngk-silmar9a9s-honda-crf450rx-2017on","provider":"Moto Mania UK","version":"1.0","type":"link"}