{"product_id":"ngk-2667-spark-plug-bkr7eix-iridium-ix-4-pack","title":"NGK 2667 Spark Plug BKR7EIX Iridium IX – 4 Pack","description":"\u003ch2\u003eEfficient Ignition for Modern Engines\u003c\/h2\u003e\n\u003cp\u003eDesigned for today’s high-tech engines, the NGK 2667 BKR7EIX Iridium IX spark plugs come in a convenient 4-pack. This combination targets enthusiasts and everyday drivers who want reliable ignition, smooth idling, and responsive acceleration across a broad range of popular vehicles, including several Audi, Buick, Chevy, and VW models. The goal is steadier starts, cleaner burns, and practical maintenance intervals, without promising guarantees—results vary with vehicle condition and driving style.\u003c\/p\u003e\n\u003cp\u003eThe Iridium IX line uses a fine-wire iridium center electrode to help deliver durable, consistently stable sparks at elevated engine temperatures. The plugs also feature a trivalent metal plating that resists corrosion and seizing, along with corrugated ribs that help prevent misfires caused by flashover. An iridium alloy with a high melting point contributes to durability under heat and electrical wear, while the pure alumina silicate ceramic insulator provides solid strength and effective heat transfer. A solid copper core further aids in heat removal, supporting reliable combustion across a wide range of operating conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this means for your vehicle\u003c\/h3\u003e\n\u003cp\u003eWith this NGK Iridium IX set, you may notice steadier throttle response, more consistent ignition under load, and improved performance consistency during daily driving or spirited sessions. The design emphasizes longevity and resistance to the stresses of modern fuel systems and high-compression engines, offering a practical upgrade path for compatible vehicles without overpromising outcomes.\u003c\/p\u003e\n\n\u003ch3\u003eKey features at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIX Iridium Series spark plugs are designed for reliable ignition and maximum efficiency in modern engines.\u003c\/li\u003e\n  \u003cli\u003eTrivalent metal plating enhances corrosion resistance and seizing protection; corrugated ribs help prevent flashover.\u003c\/li\u003e\n  \u003cli\u003eFine-wire iridium center electrode delivers durable, stable sparks at high temperatures.\u003c\/li\u003e\n  \u003cli\u003eIridium alloy provides high heat and electrical wear resistance for long-lasting performance.\u003c\/li\u003e\n  \u003cli\u003ePure alumina silicate ceramic insulator plus a solid copper core improve strength and heat transfer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct specs and installation notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThread diameter: 14 mm\u003c\/li\u003e\n  \u003cli\u003eThread pitch: 1.25 mm\u003c\/li\u003e\n  \u003cli\u003eSeat type: Gasket\u003c\/li\u003e\n  \u003cli\u003eReach: 19 mm (3\/4\")\u003c\/li\u003e\n  \u003cli\u003eHex size: 5\/8\" (16 mm)\u003c\/li\u003e\n  \u003cli\u003eCenter electrode material: Iridium; size 0.6 mm; projected tip\u003c\/li\u003e\n  \u003cli\u003eGround electrode: Nickel; standard shape; resistor: yes; resistor value: 5 kΩ\u003c\/li\u003e\n  \u003cli\u003eHeat range: 7\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eTorque guidance varies by engine block material. Cast iron engines typically call for 18–25.3 lb ft, while aluminum blocks may use 18–21.6 lb ft. The nominal gap is 0.8 mm, and the overall height is ISO-compliant for broad compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n\u003cp\u003eThe 4-pack provides a ready-to-install set designed for convenient maintenance and consistent replacement intervals across compatible model years and trims. Use as part of a regular tune-up routine to help maintain crisp starting and steady performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which vehicles is the NGK 2667 Iridium IX compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compatible with a range of Audi, Buick, Chevy, and VW models listed in the data; verify fit with your vehicle’s specs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What makes Iridium IX spark plugs different?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Iridium center electrode offers durable, stable sparks; trivalent plating resists corrosion; designed for high-temperature operation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":42470701858901,"sku":"B07X7HL3PS","price":53.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ngk-2667-spark-plug-iridium-ix.jpg?v=1778144799","url":"https:\/\/plentytorque.co.uk\/products\/ngk-2667-spark-plug-bkr7eix-iridium-ix-4-pack","provider":"PlentyTorque","version":"1.0","type":"link"}