{"product_id":"ngk-iridium-ix-lkr7dix-11s-spark-plugs-4-pack-0-6mm-iridium-tip-5-8-hex-for-improved-throttle-response","title":"NGK Iridium IX LKR7DIX-11S Spark Plugs 4-Pack — 0.6mm Iridium Tip, 5\/8\" Hex for Improved Throttle Response","description":"\u003cp\u003e\u003cstrong\u003eNGK LKR7DIX-11S Iridium IX spark plugs are high-performance replacement plugs designed to deliver precise, durable ignition for performance-minded engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese NGK Iridium IX LKR7DIX-11S plugs (model 93175) come in a 4-pack and pair a 0.6 mm laser-welded iridium center electrode with a tapered ground electrode and extended insulator to promote reliable starts, responsive throttle behavior, and long service life. Built with a high-melting-point iridium alloy and trivalent metal plating, they resist wear, corrosion, and seizing while keeping combustion sealing tight thanks to a triple gasket design.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these spark plugs improve throttle response and ignitability?\u003c\/h3\u003e\n\u003cp\u003eThe Iridium IX uses an ultra-fine 0.6 mm center electrode to concentrate spark energy and reduce quenching, helping the mixture ignite more easily. Drivers often notice crisper throttle transitions because the spark is more consistent across RPM ranges.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e0.6 mm laser-welded iridium tip for focused spark\u003c\/li\u003e\n  \u003cli\u003eTapered ground electrode to minimize spark quenching\u003c\/li\u003e\n  \u003cli\u003eStable spark delivery across varying engine speeds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features extend the service life of the LKR7DIX-11S plugs?\u003c\/h3\u003e\n\u003cp\u003eIridium’s very high melting point gives the center electrode superior resistance to thermal and electrical wear, so the plug maintains its gap and performance longer than standard materials. Additional protections like trivalent metal plating and a triple gasket seal reduce corrosion, seizing, and combustion leakage that shorten component life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium alloy center electrode for enhanced durability\u003c\/li\u003e\n  \u003cli\u003eTrivalent metal plating prevents corrosion and seizing\u003c\/li\u003e\n  \u003cli\u003eTriple gasket seal eliminates combustion gas leakage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these plugs easy to install and compatible with high-performance engines?\u003c\/h3\u003e\n\u003cp\u003eNGK builds these plugs to OE-style specifications so they fit common engine configurations that require the LKR7DIX-11S reach and hex size. The 5\/8\" hex makes standard wrench installation straightforward, and the included resistor reduces electrical noise for modern ignition systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHex size: 5\/8 inch for conventional tools\u003c\/li\u003e\n  \u003cli\u003eResistor value: 5K Ohm compatible with electronic ignitions\u003c\/li\u003e\n  \u003cli\u003eLonger insulator and corrugated ribs to prevent flashover\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance and performance notes should buyers consider?\u003c\/h3\u003e\n\u003cp\u003eIridium plugs are engineered for longevity, but periodic inspection ensures optimal performance—check gaps and seating during routine service intervals. Use the manufacturer’s torque and gap specifications for your vehicle to avoid damage and preserve the gasket seal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFollow vehicle OEM torque and gap specs when installing\u003c\/li\u003e\n  \u003cli\u003eInspect for fouling or physical damage during regular service\u003c\/li\u003e\n  \u003cli\u003eReplace in matched sets to maintain even cylinder performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These NGK LKR7DIX-11S Iridium IX spark plugs are aimed at enthusiasts and technicians seeking a durable, high-ignitability replacement for engines that demand consistent spark performance—especially in tuned or higher-compression applications. They suit drivers who want improved throttle response and longer service intervals compared with conventional plugs, and mechanics who prefer plugs that resist corrosion and seizing during repeated maintenance.\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: What is the electrode material and why does it matter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The center electrode is iridium, which resists thermal and electrical wear for longer life and consistent spark performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use these plugs on engines with electronic ignition?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They include a 5K Ohm resistor designed to be compatible with modern electronic ignition systems.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":55168626819415,"sku":"B07FP6KFLT","price":51.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/ngk-iridium-ix-front-packaging_d1e7b5a8-6f0b-4f32-8763-1808288c13c9.jpg?v=1790410269","url":"https:\/\/britishgarage.co.uk\/products\/ngk-iridium-ix-lkr7dix-11s-spark-plugs-4-pack-0-6mm-iridium-tip-5-8-hex-for-improved-throttle-response","provider":"British Garage","version":"1.0","type":"link"}