{"product_id":"ngk-racing-r7420-10-competition-spark-plug-rx-7-13b-20b","title":"NGK Racing R7420-10 Competition Spark Plug – RX-7 \/ 13B \/ 20B","description":"\u003cp\u003e\u003cstrong\u003eNGK R7420-10 Racing Competition Spark Plug\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eNGK R7420-10\u003c\/strong\u003e is part of NGK's dedicated Racing Competition range, developed for engines operating under substantially higher temperatures, cylinder pressures and loads than standard applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRACING SPECIFICATION\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eR7420-10\u003c\/strong\u003e uses:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHeat Range: 10\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIridium centre electrode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePlatinum ground electrode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSolid terminal\u003c\/li\u003e\n\u003cli\u003eDedicated NGK Racing construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNGK states that its Racing plugs are intended for \u003cstrong\u003eracing, circuit use and highly tuned engines\u003c\/strong\u003e, and that heat range should be selected according to the engine specification and operating conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRSG SUPPLIED STOCK: JAPAN SOURCED • MADE IN JAPAN\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATION\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRecommended for appropriately specified performance applications including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMazda RX-7\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e13B performance builds\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e13B-REW\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e20B performance builds\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eHigh-boost applications\u003c\/li\u003e\n\u003cli\u003eMotorsport \/ competition engines\u003c\/li\u003e\n\u003cli\u003eTrack and drag applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT – NOT A STANDARD REPLACEMENT PLUG\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNGK specifically warns that Racing plug \u003cstrong\u003eheat range and firing-end design must be selected according to engine tuning level and operating conditions\u003c\/strong\u003e. A plug that is too cold can foul during low-temperature\/low-load operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUnsure whether your engine requires R7420-10? Contact RSG with your engine specification, power level, fuel and intended use.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWorldwide Shipping Available.\u003c\/strong\u003e\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":58731669553536,"sku":"NGK-RX7-IGN-R7420-10-5501-JP","price":55.68,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1013\/2573\/4272\/files\/IMG_20250304_092815.jpg?v=1787572929","url":"https:\/\/rotarysecretgarage.com\/products\/ngk-racing-r7420-10-competition-spark-plug-rx-7-13b-20b","provider":"Rotary Secret Garage","version":"1.0","type":"link"}