{"product_id":"denso-iridium-spark-plugs-6-pack-sk16hr11-3417-long-life-direct-fit-oem-replacement","title":"Denso Iridium Spark Plugs 6-Pack SK16HR11 (3417) — Long Life, Direct-Fit OEM Replacement","description":"\u003cp\u003e\u003cstrong\u003eDENSO 3417 (SK16HR11) iridium spark plugs are a six-piece OEM-grade replacement set engineered for longer service life and consistent ignition performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese genuine DENSO 3417 spark plugs come in a convenient 6-pack, designed as direct-fit replacements for compatible gasoline engines that call for the SK16HR11 specification. Built with an iridium center electrode and precision-ground tip, they prioritize reliable starts, steady combustion, and extended service intervals compared with standard copper plugs. This listing is for one order containing six new DENSO 3417 spark plugs — ideal for multi-cylinder tune-ups or stocking a maintenance kit.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engines and vehicles work with DENSO 3417 (SK16HR11)?\u003c\/h3\u003e\n\u003cp\u003eThe DENSO 3417 follows the SK16HR11 thread, heat range, and electrode design—check your owner’s manual or existing plug for match. These plugs are commonly used in a variety of passenger cars and light trucks that specify SK16HR11-style iridium plugs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits engines requiring SK16HR11 dimensions and thread pitch\u003c\/li\u003e\n  \u003cli\u003eSuitable for many gasoline-powered vehicles and OEM applications\u003c\/li\u003e\n  \u003cli\u003eDirect replacement when your vehicle manufacturer lists DENSO 3417 or SK16HR11\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do iridium electrodes benefit performance and longevity?\u003c\/h3\u003e\n\u003cp\u003eIridium is a hard, high-melting-point metal that allows a smaller, precise electrode tip. Compared with conventional materials, iridium maintains a finer spark gap longer, which supports stable combustion over many miles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSmaller electrode for more concentrated spark and improved ignition\u003c\/li\u003e\n  \u003cli\u003eGreater erosion resistance extends useful service life\u003c\/li\u003e\n  \u003cli\u003eHelps maintain factory-specified gap for consistent fuel burn\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation and maintenance?\u003c\/h3\u003e\n\u003cp\u003eInstallation follows standard spark plug replacement steps: remove old plugs, confirm correct gap if needed, and torque to the manufacturer’s specification. Use anti-seize only if recommended by your service manual and inspect coil boots and ignition components while you’re working.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInspect threads and seat surface for debris before fitting\u003c\/li\u003e\n  \u003cli\u003eTighten to vehicle-specified torque to avoid damage or leakage\u003c\/li\u003e\n  \u003cli\u003eCheck ignition coils and wires for wear when replacing plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow many plugs are included and when should I replace them?\u003c\/h3\u003e\n\u003cp\u003eThis listing supplies six new DENSO 3417 spark plugs—one order equals a full 6-piece set. Replacement intervals vary by driving habits and engine design; consult your vehicle manual, but iridium plugs typically last noticeably longer than conventional plugs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne order = 6 genuine DENSO 3417 (SK16HR11) spark plugs\u003c\/li\u003e\n  \u003cli\u003eReplace according to vehicle manufacturer or performance symptoms\u003c\/li\u003e\n  \u003cli\u003eLonger service life than copper plugs, reduce frequency of changes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This six-pack of DENSO 3417 (SK16HR11) iridium spark plugs is aimed at DIY mechanics, professional technicians, and vehicle owners performing scheduled maintenance on compatible gasoline engines. If you need OEM-quality replacements that deliver reliable ignition, extended plug life, and clean combustion characteristics for a multi-cylinder engine, this set is an appropriate choice. Confirm compatibility with your vehicle’s specifications 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 DENSO 3417 pack compatible with SK16HR11 specifications?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the DENSO 3417 listed here matches the SK16HR11 specification; verify fitment with your vehicle manual.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many spark plugs are included in one order?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: One order contains six new DENSO 3417 (SK16HR11) iridium spark plugs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":48080257646750,"sku":"B00UKIQQ7I","price":115.44,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/denso-3417-front-packaging.jpg?v=1785780187","url":"https:\/\/northtrailauto.ca\/products\/denso-iridium-spark-plugs-6-pack-sk16hr11-3417-long-life-direct-fit-oem-replacement","provider":"North Trail Auto","version":"1.0","type":"link"}