{"product_id":"ngk-iridium-spark-plug-dcpr8eix-for-indian-chieftain-dark-horse-2016-2018-single-oem-grade-long-life","title":"NGK Iridium Spark Plug DCPR8EIX for Indian Chieftain Dark Horse 2016-2018 — Single OEM-Grade, Long-Life","description":"\u003cstrong\u003eNGK Iridium DCPR8EIX is a single OEM-grade iridium spark plug engineered to deliver reliable ignition and long service life for Indian Chieftain Dark Horse 2016–2018 models.\u003c\/strong\u003e\n\n\u003cp\u003eNGK is a global leader in ignition technology and this DCPR8EIX iridium spark plug matches the original equipment specifications used on many modern motorcycles. Designed for consistent spark performance and extended durability, this plug is sold individually so you can replace only what you need or keep a spare on hand. Verify fitment with your bike’s engine code and quantity requirements before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this NGK iridium plug improve ignition consistency?\u003c\/h3\u003e\n\u003cp\u003eThe iridium fine-wire center electrode offers a stable, high-intensity spark that promotes more complete combustion than conventional plugs. Iridium is harder and more erosion-resistant than nickel, which helps the electrode maintain its profile over longer mileage and maintains gap stability for consistent firing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFine iridium center electrode for precise spark delivery\u003c\/li\u003e\n  \u003cli\u003eReduced electrode wear for longer service intervals\u003c\/li\u003e\n  \u003cli\u003eStable spark under varied throttle and load conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this part fit my Indian Chieftain Dark Horse 2016–2018?\u003c\/h3\u003e\n\u003cp\u003eThis listing is for the NGK DCPR8EIX spark plug, which is commonly specified for the Indian Chieftain Dark Horse ABS model years 2016–2018. Always cross-check your motorcycle’s engine and OEM part number using NGK’s online application tool or your service manual to confirm compatibility and required quantity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMatches common OEM specifications for listed years and model\u003c\/li\u003e\n  \u003cli\u003eSold individually so you can replace one plug or more as needed\u003c\/li\u003e\n  \u003cli\u003eCheck NGK application charts or dealer records before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long can I expect this iridium plug to last compared to standard plugs?\u003c\/h3\u003e\n\u003cp\u003eIridium plugs typically last significantly longer than conventional nickel plugs due to the metal’s superior hardness and resistance to erosion. While lifespan varies with riding style and engine conditions, iridium plugs commonly achieve higher mileage before replacement is needed, helping reduce maintenance frequency.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium construction resists wear for extended gap life\u003c\/li\u003e\n  \u003cli\u003eFewer replacements compared to standard plugs under normal use\u003c\/li\u003e\n  \u003cli\u003eActual service life depends on tuning, fuel quality, and riding habits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and gap this spark plug for the best results?\u003c\/h3\u003e\n\u003cp\u003eNGK DCPR8EIX is manufactured to a standard factory gap, but always inspect and set the gap to your motorcycle manufacturer’s specification before installation. Use a torque wrench to tighten to the recommended value and apply anti-seize sparingly if your workshop manual advises it.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm and adjust gap per Indian service manual\u003c\/li\u003e\n  \u003cli\u003eTighten to specified torque to avoid damage or misfit\u003c\/li\u003e\n  \u003cli\u003eReplace spark plug wires\/boots if cracked or worn for best performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This NGK DCPR8EIX iridium spark plug is intended for Indian Chieftain Dark Horse owners, motorcycle technicians, and riders who want an OEM-equivalent replacement with longer service life. It's also suitable for anyone maintaining a single-cylinder or V-twin configuration that lists this part number—especially riders seeking reliable ignition performance and reduced maintenance intervals. Remember to confirm exact application and the number of plugs required for your specific engine before purchasing.\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: Is this NGK spark plug sold individually or in a set?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This listing is for one NGK DCPR8EIX spark plug sold individually.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to gap the NGK DCPR8EIX before installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Confirm the gap against your Indian service manual; it's shipped at a standard factory gap but may need fine adjustment.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":48084338016414,"sku":"B0786RXQPB","price":32.16,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ngk-iridium-front-packaging.jpg?v=1785850645","url":"https:\/\/northtrailauto.ca\/products\/ngk-iridium-spark-plug-dcpr8eix-for-indian-chieftain-dark-horse-2016-2018-single-oem-grade-long-life","provider":"North Trail Auto","version":"1.0","type":"link"}