{"product_id":"ngk-spark-plugs-r6254e-105-spark-plug-part-number-3949","title":"NGK Spark Plugs R6254E-105 Spark Plug, Part Number 3949","description":"Spark Plug - R6254E-105\n\u003cp\u003eThe NGK Spark Plugs R6254E-105 Spark Plug is designed for dependable ignition performance in high-performance and demanding automotive applications. Manufactured by NGK Spark Plugs, this spark plug uses a copper-core center electrode to help transfer heat efficiently while supporting consistent spark delivery. Its construction is suited for engines that require reliable combustion, durable materials, and effective resistance to heat-related stress.\u003c\/p\u003e\u003cp\u003eTrivalent metal plating helps provide superior corrosion resistance and anti-seizing properties, supporting easier service and long-term durability. The pure alumina silicate ceramic insulator delivers high strength and improved heat transfer, while triple seals help prevent leakage. Corrugated insulator ribs reduce the risk of flashover, helping maintain dependable ignition under demanding operating conditions.\u003c\/p\u003e\u003cp\u003eThe NGK Spark Plugs R6254E-105 fits applications specified for this spark plug model and heat range. Confirm vehicle, engine, plug design, and heat-range compatibility before installation. This product is identified by manufacturer part number 3949 and vendor part number R6254E-105.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eApplication: Spark plug for high-performance and demanding automotive engine applications\u003c\/li\u003e\n\u003cli\u003eBrand: NGK Spark Plugs\u003c\/li\u003e\n\u003cli\u003eModel: R6254E-105\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 3949\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: R6254E-105\u003c\/li\u003e\n\u003cli\u003ePlating: Trivalent metal plating provides corrosion resistance and anti-seizing properties\u003c\/li\u003e\n\u003cli\u003eInsulator: Pure alumina silicate ceramic provides high strength and improved heat transfer\u003c\/li\u003e\n\u003cli\u003eSealing: Triple seals help prevent leakage\u003c\/li\u003e\n\u003cli\u003eIgnition Protection: Corrugated ribs help prevent flashover\u003c\/li\u003e\n\u003cli\u003eHeat Management: Copper core aids in heat removal\u003c\/li\u003e\n\u003cli\u003eFitment: Verify vehicle and engine compatibility before installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":67567442329835,"sku":"R6254E105","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/52299.png?v=1790796672","url":"https:\/\/ctracingservices.com\/products\/ngk-spark-plugs-r6254e-105-spark-plug-part-number-3949","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}