{"product_id":"ngk-lfr6a-11-spark-plug","title":"NGK Spark Plug LFR6A-11","description":"\u003cp\u003eThe NGK LFR6A-11 Spark Plug is a genuine NGK \u003cstrong\u003eV-Power\u003c\/strong\u003e resistor spark plug, also referenced by \u003cstrong\u003estock number 3672\u003c\/strong\u003e. It is designed to deliver reliable ignition performance with NGK's V-groove center electrode design and is used across selected marine, automotive, and small-engine applications where the exact plug specification is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine \u003cstrong\u003eNGK LFR6A-11\u003c\/strong\u003e spark plug\u003c\/li\u003e\n\u003cli\u003eNGK \u003cstrong\u003estock number 3672\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eV-Power\u003c\/strong\u003e design for improved ignitability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistor\u003c\/strong\u003e plug design\u003c\/li\u003e\n\u003cli\u003eSupportable specification references show \u003cstrong\u003e14 mm thread diameter\u003c\/strong\u003e, \u003cstrong\u003e1.25 mm thread pitch\u003c\/strong\u003e, \u003cstrong\u003e16 mm (5\/8\") hex\u003c\/strong\u003e, \u003cstrong\u003e1.1 mm (.044\") gap\u003c\/strong\u003e, and \u003cstrong\u003eheat range 6\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsed in selected marine, automotive, and small-engine applications. Exact compatibility depends on the engine manufacturer's required spark plug specification, so this plug should be matched by \u003cstrong\u003eapplication, engine model, and engine serial number where applicable\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSpark plug fitment can vary by engine family, year, cylinder-head design, and ignition specification. Always confirm compatibility by \u003cstrong\u003eengine model, serial number, and the manufacturer's recommended spark plug reference\u003c\/strong\u003e before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eReplace this spark plug during scheduled tune-up intervals, when misfire symptoms appear, when starting becomes harder than normal, or when inspection shows fouling, worn electrodes, or inconsistent spark performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eInstall only after confirming the correct plug specification for the application. Supportable references show this plug uses a \u003cstrong\u003egasket seat\u003c\/strong\u003e and a \u003cstrong\u003e1.1 mm preset gap\u003c\/strong\u003e, so the replacement should be checked against the engine manufacturer's service requirement before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCurrent references identify this plug as \u003cstrong\u003eLFR6A-11\u003c\/strong\u003e, with \u003cstrong\u003eNGK stock number 3672\u003c\/strong\u003e. Shop-pack references also show \u003cstrong\u003eNGK 1119\u003c\/strong\u003e for the same plug designation in bulk packaging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSpark plugs are easy to overlook, but the exact plug code matters. Thread reach, heat range, seat style, and preset gap all need to match the engine's requirement, and using the correct plug is one of the simplest ways to protect starting performance, idle quality, and reliable ignition under load.\u003c\/p\u003e\n\u003cp\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564191547428,"sku":"NGK-LFR6A-11","price":27.18,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/cf52e4b6-6ca9-4a67-8a05-7821d7ece967.png?v=1776287020","url":"https:\/\/marisolmarine.com\/products\/ngk-lfr6a-11-spark-plug","provider":"Marisol Marine Company","version":"1.0","type":"link"}