{"product_id":"ngk-iridium-spark-plugs-for-chevrolet-silverado-1500-5-3l-6-2l-2014-2024-8-pack-0-040-pre-gapped-direct-fit","title":"NGK Iridium Spark Plugs for Chevrolet Silverado 1500 5.3L\/6.2L (2014–2024) — 8-Pack, 0.040\" Pre-Gapped Direct-Fit","description":"\u003cstrong\u003eNGK Iridium IX LTR5IX11 spark plugs are a direct-fit 8-pack replacement for Chevrolet Silverado 1500 5.3L and 6.2L V8 engines (2014–2024) with a factory gap of 0.040\".\u003c\/strong\u003e\n\n\u003cp\u003eThese NGK Iridium IX spark plugs are engineered to match the factory fitment and firing characteristics of Silverado 1500 V8 engines from 2014 through 2024. Supplied as eight LTR5IX11 units, they use a fine iridium center electrode and corrosion-resistant components to maintain gap stability and consistent ignition performance over time. Designed by NGK, a leading global spark plug manufacturer, this set addresses ignition reliability, misfire reduction, and efficient combustion without modifying engine hardware.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these NGK plugs affect ignition and engine response?\u003c\/h3\u003e\n\u003cp\u003eIridium’s high melting point allows a very fine center electrode that focuses the spark, producing a consistent and concentrated spark event. That sharper spark can lead to more complete combustion cycles, reducing the chance of misfires and maintaining steady throttle response under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFine iridium center electrode for focused spark delivery\u003c\/li\u003e\n  \u003cli\u003eDurable ground electrode to resist gap erosion\u003c\/li\u003e\n  \u003cli\u003eMaintains factory 0.040\" gap for correct ignition timing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these spark plugs fit my Silverado 1500 and what’s included?\u003c\/h3\u003e\n\u003cp\u003eThis listing contains eight NGK LTR5IX11 Iridium IX spark plugs specified for Chevrolet Silverado 1500 5.3L and 6.2L V8 models from 2014 through 2024. Each plug ships with the factory-specified 0.040\" gap so they are ready for direct installation in compatible engines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFitment: Silverado 1500, 5.3L and 6.2L V8 (2014–2024)\u003c\/li\u003e\n  \u003cli\u003eQuantity: 8 spark plugs (complete set for V8)\u003c\/li\u003e\n  \u003cli\u003ePre-set gap: 0.040\" per manufacturer spec\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these plugs impact fuel economy and emissions?\u003c\/h3\u003e\n\u003cp\u003eA stable, efficient spark improves how thoroughly the air\/fuel mixture burns, which can help reduce unburnt hydrocarbons and lower the frequency of misfires. While exact fuel economy and emissions improvements depend on vehicle condition and driving habits, using properly gapped, high-precision plugs supports cleaner combustion compared with worn or eroded plugs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSharper ignition reduces incomplete combustion\u003c\/li\u003e\n  \u003cli\u003eLess fouling and fewer misfires versus degraded plugs\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant design helps long-term performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the durability and maintenance considerations?\u003c\/h3\u003e\n\u003cp\u003eNGK Iridium IX plugs are built to resist electrode wear and to hold gap specifications longer than conventional plugs. Regular inspection at recommended service intervals helps ensure optimal performance; replace according to vehicle manufacturer guidance or if misfires, rough idle, or diagnostic codes indicate ignition problems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium center electrode reduces gap growth over time\u003c\/li\u003e\n  \u003cli\u003eDurable shell plating resists corrosion in harsh environments\u003c\/li\u003e\n  \u003cli\u003eInspect at routine tune-up intervals or when symptoms appear\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Owners and technicians who need a factory-compatible, high-precision spark plug set for Chevrolet Silverado 1500 V8 engines (5.3L and 6.2L) from model years 2014–2024. This 8-pack suits anyone replacing all cylinders at once—DIYers, fleet mechanics, and service shops seeking consistent fitment, a 0.040\" gap, and the longevity benefits of an iridium electrode.\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: Are these NGK Iridium IX plugs pre-gapped for my Silverado?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — each LTR5IX11 plug is pre-set to a 0.040\" gap to match the specified Silverado V8 requirement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I replace all eight spark plugs myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it's a standard DIY job if you have basic tools and follow torque and anti-seize recommendations; otherwise use a mechanic.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":48081780637854,"sku":"B0F2VWSBYW","price":111.92,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ngk-iridium-ix-front-packaging_0ec51c98-ce08-4e63-bf05-bf39d19c0aa1.jpg?v=1785809747","url":"https:\/\/northtrailauto.ca\/products\/ngk-iridium-spark-plugs-for-chevrolet-silverado-1500-5-3l-6-2l-2014-2024-8-pack-0-040-pre-gapped-direct-fit","provider":"North Trail Auto","version":"1.0","type":"link"}