{"product_id":"ngk-iridium-ix-dcpr7eix-spark-plugs-for-harley-davidson-twin-cam-1999-2016-pair","title":"NGK Iridium IX DCPR7EIX Spark Plugs for Harley Davidson Twin Cam (1999-2016) – Pair","description":"\u003cdiv\u003e\n  \u003cp\u003eMeet the NGK Iridium IX DCPR7EIX spark plugs, purpose-built for Harley-Davidson Twin Cam models from 1999 through 2016. The iridium electrode is engineered to be exceptionally small, about 25% smaller than a platinum counterpart and roughly one-quarter the size of a conventional nickel electrode. This design helps reduce the voltage needed to produce a reliable spark and supports a cleaner, more efficient burn across the combustion chamber. The result can translate to crisper cold starts, smoother idle, and a steadier power delivery as you roll on the throttle on open roads or backroads alike.\u003c\/p\u003e\n  \u003ch2\u003eDesigned for Harley-Davidson Twin Cam (1999–2016)\u003c\/h2\u003e\n  \u003cp\u003eThese plugs are tailored for the Twin Cam engines that powered a wide range of Harley bikes over nearly two decades. The combination of a compact iridium center electrode and a modern shell plating works together to maintain performance in varied riding conditions, including exposure to heat, moisture, and road salt.\u003c\/p\u003e\n  \u003cp\u003eIn practical riding terms, you may notice more consistent ignition and timing behavior, especially as the engine warms. The ultra-small diameter center electrode helps minimize energy demands from the ignition system, potentially extending life for related components while maintaining strong combustion efficiency. While experiences vary, the design emphasizes reliable performance under everyday use and on longer journeys alike.\u003c\/p\u003e\n  \u003ch3\u003eKey benefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePre-gapped for quick installation and straightforward setup\u003c\/li\u003e\n    \u003cli\u003eIridium composition and tiny center electrode support efficient ignition and stable performance\u003c\/li\u003e\n    \u003cli\u003eDurable metal shell plating adds anti-corrosion protection in challenging riding environments\u003c\/li\u003e\n    \u003cli\u003eHarley Twin Cam compatibility supports reliable, ride-ready ignition in real-world conditions\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch3\u003eReal-world use and possibilities\u003c\/h3\u003e\n  \u003cp\u003eOn cool mornings or after a long ride, the improved ignition efficiency can contribute to smoother starts and consistent throttle response. Riders often report a more predictable power feel across mid to high RPM bands, with a perception of quicker engagement when accelerating from a stop or after shifting gears. The pair is designed to perform reliably across a broad range of temperatures and road conditions, offering a balance of performance and longevity without claiming guaranteed outcomes.\u003c\/p\u003e\n  \u003cp\u003eAs a replacement, these plugs provide a convenient upgrade path for riders seeking a blend of enhanced combustion quality, corrosion resistance, and ease of installation—especially for those who ride regularly and want dependable ignition behavior over time.\u003c\/p\u003e\n  \u003ch3\u003eWhat you get\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTwo NGK Iridium IX DCPR7EIX spark plugs\u003c\/li\u003e\n    \u003cli\u003eTwo pre-gapped plugs designed for fast, hassle-free installation\u003c\/li\u003e\n    \u003cli\u003eClear expectations for maintenance and installation guidance per Harley Twin Cam service practices\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eIf you’re upgrading your Harley Twin Cam, these plugs offer a thoughtful balance of modern spark technology, corrosion resistance, and practical fitment. Use them as part of a regular maintenance cycle or as a performance-minded upgrade on your next ride.\u003c\/p\u003e\n\u003c\/div\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: Are these NGK Iridium IX DCPR7EIX plugs compatible with my Harley?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit Harley-Davidson Twin Cam models from 1999 to 2016 and are sold as a ready-to-install pair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these plugs come pre-gapped?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, each plug ships pre-gapped for quick, reliable installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":42469466406997,"sku":"B003BUCNNS","price":38.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ngk-iridium-ix-dcpr7eix-pair-packaging.jpg?v=1778094985","url":"https:\/\/plentytorque.co.uk\/products\/ngk-iridium-ix-dcpr7eix-spark-plugs-for-harley-davidson-twin-cam-1999-2016-pair","provider":"PlentyTorque","version":"1.0","type":"link"}