{"product_id":"r5673-8-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug","title":"R5673-8 NGK Standard Racing Spark Plug | Genuine NGK Spark Plug","description":"\u003ch2\u003e🔧 Product Description\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eNGK Standard Racing Spark Plug – Part Number: R5673-8\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNGK racing spark plugs are built for sustained high-RPM, high-temperature competition use, with precious-metal electrodes and cold heat ranges chosen for heavily loaded engines. Racing plugs are application-specific – heat range selection is critical, so confirm the specification for your engine before fitting.\u003c\/p\u003e\u003ch2\u003e⚙️ Key Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompetition-grade construction for sustained high RPM and cylinder temperatures\u003c\/li\u003e\n\u003cli\u003eCold heat range for heavily loaded engines\u003c\/li\u003e\n\u003cli\u003ePure alumina silicate ceramic insulator, providing superior strength and better heat transfer\u003c\/li\u003e\n\u003cli\u003eTriple seals prevent leakage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e📏 Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNGK stock number: 3249\u003c\/li\u003e\n\u003cli\u003eThread: Racing Spark Plugs\u003c\/li\u003e\n\u003cli\u003eReach: .460\"\u003c\/li\u003e\n\u003cli\u003eHex: 16 mm (5\/8 in)\u003c\/li\u003e\n\u003cli\u003eSeat: Tapered\u003c\/li\u003e\n\u003cli\u003eTerminal: Solid\u003c\/li\u003e\n\u003cli\u003eType: 14mm Spark Plugs cont'd V-Power Non-Resistor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e🚘 Application\u003c\/h2\u003e\u003cp\u003eListed in NGK's application charts for marine, motorcycle, ATV and snowmobile equipment. The chart shows a 1.0 mm gap for these engines, but check it against your engine's manual before fitting.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFlagship TC500 (350 CID, HI PERFORMANCE, 1993-1975) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eFlagship TC500 (454 CID, HI PERFORMANCE, 1993-1975) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eFlagship TC650 (454 CID, HI PERFORMANCE, 1977-1975) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser 270 (8 CYL GM SMALL BLOCK, TAPER SEAT) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser 325 (8 CYL GM BIG BLOCK, FROM) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser 350 (8 CYL GM BIG BLOCK) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser 460 CYCLONE (8 CYL GM BIG BLOCK) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser 475 TURBO (8 CYL GM BIG BLOCK) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser HP500 (8 CYL GM BIG BLOCK, 540 CID) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser HP525 SC (8 CYL GM BIG BLOCK) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser HP575 (8 CYL GM BIG BLOCK) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser HP575 SCI (8 CYL GM BIG BLOCK) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser HP600 SC (8 CYL GM BIG BLOCK) – Inboard Engine\u003c\/li\u003e\n\u003cli\u003eMercruiser HP800 SC (8 CYL GM BIG BLOCK) – Inboard Engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThat is the 14 most common of 15 applications NGK's charts list for this plug – ask us to check yours.\u003c\/p\u003e\u003ch2\u003e🔄 Supersession \u0026amp; Cross Reference\u003c\/h2\u003e\u003cp\u003eNGK's cross-reference tables list this plug against these part numbers.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAutolite: 134, 3264, AR133, AR134\u003c\/li\u003e\n\u003cli\u003eChampion: 263, BL3, V61\u003c\/li\u003e\n\u003cli\u003eACDelco: 438T\u003c\/li\u003e\n\u003cli\u003eAccel: 263\u003c\/li\u003e\n\u003cli\u003eMotorcraft: AF1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e📦 Condition\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand new genuine product\u003c\/li\u003e\n\u003cli\u003eSupplied in original packaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":56192380338468,"sku":"087295141403","price":19.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/R5673-8__0.jpg?v=1788370418","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/r5673-8-ngk-standard-racing-spark-plug-genuine-ngk-spark-plug","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}