{"product_id":"ngk-iridium-ix-spark-plugs-bkr6eix-11-4-pack-0-6mm-iridium-14mm-thread-reach","title":"NGK Iridium IX Spark Plugs BKR6EIX-11 4-Pack — 0.6mm Iridium, 14mm Thread Reach","description":"\u003cp\u003e\u003cstrong\u003eNGK BKR6EIX-11 Iridium IX spark plugs are high-performance replacement plugs with a 0.6mm iridium fine-wire center electrode, designed to deliver reliable ignition and long service life in compatible engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis four-pack of NGK Iridium IX plugs combines a projected 0.6mm iridium center electrode with a taper-cut nickel ground electrode and a gasket-seat design to provide consistent spark, improved throttle response, and extended durability compared with conventional plugs. Engineered with a 14mm thread, 19mm reach and a 1.25mm pitch, these plugs suit vehicles specified for the BKR6EIX-11 fit and heat range 6. Each plug includes a built-in resistor and a solid terminal for stable electrical connections.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes the NGK Iridium IX different from standard plugs?\u003c\/h3\u003e\n\u003cp\u003eThe Iridium IX line uses a very fine 0.6mm iridium center electrode that requires less voltage to fire and resists wear longer than larger copper or nickel cores. Projection of the center electrode helps create a more concentrated flame kernel, improving combustion stability across the RPM range. The taper-cut ground electrode supports a predictable spark gap over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFine-wire 0.6mm iridium center electrode for lower firing voltage\u003c\/li\u003e\n  \u003cli\u003eProjected electrode design for concentrated ignition\u003c\/li\u003e\n  \u003cli\u003eTaper-cut nickel ground electrode for consistent gap geometry\u003c\/li\u003e\n  \u003cli\u003eIntegrated resistor to reduce ignition noise and protect electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these plugs fit and install on my vehicle?\u003c\/h3\u003e\n\u003cp\u003eThese plugs have a 14mm thread diameter, 19mm (3\/4\") reach and a 5\/8\" (16mm) hex for installation with standard sockets. They use a gasket seat and a 1.25mm thread pitch, so confirm your vehicle’s specifications or OEM part references before purchase. The solid terminal is compatible with most ignition leads or coil-on-plug boots that accept a conventional terminal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThread size: 14mm, reach: 19mm (3\/4\")\u003c\/li\u003e\n  \u003cli\u003eHex size: 5\/8\" (16mm) for standard socket fit\u003c\/li\u003e\n  \u003cli\u003eSeat type: gasket; thread pitch: 1.25mm\u003c\/li\u003e\n  \u003cli\u003eFactory gap: 0.044\" (1.1mm) — check vehicle service manual before final adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance and maintenance benefits can I expect?\u003c\/h3\u003e\n\u003cp\u003eBecause iridium is harder and more erosion-resistant than other electrode materials, these plugs tend to maintain their gap and performance longer, which helps with consistent starts and stable idle. The fine-wire center electrode lowers the voltage required to produce a spark, improving combustion efficiency in many applications. Periodic inspection is still recommended to confirm condition and gap over the life of the plug.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExtended service life compared with conventional plugs\u003c\/li\u003e\n  \u003cli\u003eLower required firing voltage for reliable ignition\u003c\/li\u003e\n  \u003cli\u003eStable gap retention reduces misfire risk over time\u003c\/li\u003e\n  \u003cli\u003eEasier throttle response and smoother idling in compatible engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there any precautions or compatibility notes?\u003c\/h3\u003e\n\u003cp\u003eAlways cross-check your vehicle’s required plug type before installation; heat range 6 and the BKR6EIX-11 designation must match manufacturer recommendations. Use proper torque when installing to avoid thread or sealing issues and verify the factory gap of 0.044\" (1.1mm) — re-gap only if your vehicle’s service manual specifies a different setting. When replacing plugs in high-mileage or modified engines, inspect ignition coils and leads for wear to ensure optimal performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm compatibility with OEM part numbers and heat range\u003c\/li\u003e\n  \u003cli\u003eTorque to manufacturer specs to prevent damage\u003c\/li\u003e\n  \u003cli\u003eInspect coils and leads during plug change\u003c\/li\u003e\n  \u003cli\u003eOne order contains four plugs — replace in sets for best results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The NGK BKR6EIX-11 Iridium IX four-pack is ideal for drivers and mechanics seeking a durable, high-quality replacement spark plug for engines that specify a 14mm, 19mm reach, gasket-seat design and heat range 6. It suits routine maintenance, performance-minded owners who want improved ignition stability, and shops that value consistent, long-lasting spark plugs for compatible vehicles. Always verify fitment for your specific make, model and engine before installing.\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 factory gap for NGK BKR6EIX-11?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Factory gap is 0.044\" (1.1mm). Check your vehicle manual before re-gapping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many plugs come in one order?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: One order includes four NGK BKR6EIX-11 Iridium IX spark plugs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":48083153911966,"sku":"B01M6TM3DG","price":51.88,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ngk-iridium-ix-front-pack.jpg?v=1785826680","url":"https:\/\/northtrailauto.ca\/products\/ngk-iridium-ix-spark-plugs-bkr6eix-11-4-pack-0-6mm-iridium-14mm-thread-reach","provider":"North Trail Auto","version":"1.0","type":"link"}