{"product_id":"ngk-bkr5eix-11-iridium-ix-spark-plugs-4","title":"NGK BKR5EIX-11 Iridium IX Spark Plugs (4)","description":"\u003cp\u003eUpgrade your ignition system with this set of 4 NGK BKR5EIX-11 Iridium IX spark plugs. Designed for performance enthusiasts and modern engine applications, NGK Iridium IX plugs provide strong ignitability, stable spark performance, and long-lasting durability compared to standard nickel alloy spark plugs.\u003c\/p\u003e\n\u003cp\u003eThe BKR5EIX-11 features a fine-wire iridium center electrode, tapered-cut ground electrode, solid copper core, and trivalent metal plating. The 0.6mm iridium tip helps produce a consistent spark, while the tapered-cut ground electrode helps reduce quenching for improved ignition efficiency and throttle response.\u003c\/p\u003e\n\u003cp\u003eThis plug is built with a 98% pure copper core for efficient heat dissipation, helping reduce overheating and support reliable starts. NGK’s trivalent plating also provides corrosion resistance and anti-seizing properties for easier installation and removal.\u003c\/p\u003e\n\u003cp\u003eThis listing is for \u003cstrong\u003e4 spark plugs\u003c\/strong\u003e, making it a convenient set for many 4-cylinder applications. Always confirm plug fitment, heat range, and gap requirements before ordering.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eGenuine NGK Iridium IX spark plugs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePart number: BKR5EIX-11\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSold as a set of 4 plugs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturer heat range: 5\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFine-wire iridium center electrode\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e0.6mm iridium tip center electrode\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTapered-cut ground electrode\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSolid 98% pure copper core for heat dissipation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTrivalent metal plating for corrosion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eResistor type plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGasket \/ flat seat design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCrush washer included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecommended for modified, high-performance, or OE nickel alloy spark plug upgrade applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpark Plug Specs\u003c\/h3\u003e\n\u003cp\u003ePart Number: BKR5EIX-11\u003cbr\u003ePlug Type: NGK Iridium IX\u003cbr\u003eThread Size: M14 x 1.25\u003cbr\u003eReach: 19.0mm \/ 0.750 in\u003cbr\u003eHex Size: 5\/8 in \/ 16mm\u003cbr\u003ePre-Gap: 1.1mm \/ 0.044 in\u003cbr\u003eSeat Type: Flat \/ gasket seat\u003cbr\u003eTerminal Type: Non-removable nut\u003cbr\u003eResistance: 5000 ohms\u003cbr\u003eGround Electrode: J-gap, nickel, tapered-cut tip\u003cbr\u003eCenter Electrode: Iridium fine wire with copper core\u003cbr\u003eInsulator Material: Ceramic\u003c\/p\u003e\n\u003ch3\u003eImportant Fitment Note\u003c\/h3\u003e\n\u003cp\u003eConfirm vehicle fitment, spark plug heat range, and gap requirements before installation. Spark plug selection can vary based on engine, modifications, fuel type, compression, boost level, and tuning setup.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e4 NGK BKR5EIX-11 Iridium IX spark plugs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":47827286786301,"sku":"NGK5464","price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1935\/9157\/files\/NGK-Iridium-X-Spark-Plugs-set-of-4-velocityshop.jpg?v=1783725547","url":"https:\/\/www.velocityshop.com\/products\/ngk-bkr5eix-11-iridium-ix-spark-plugs-4","provider":"Velocity Shop","version":"1.0","type":"link"}