{"product_id":"a-premium-iridium-platinum-spark-plugs-for-gm-v8-pack-of-8-fine-wire-iridium-tip-platinum-core-oem-fit","title":"A-Premium Iridium Platinum Spark Plugs for GM V8 — Pack of 8 Fine-Wire, Iridium Tip \u0026 Platinum Core OEM Fit","description":"\u003cp\u003e\u003cstrong\u003eA-Premium Iridium Platinum Spark Plugs (pack of 8) are fine-wire, dual-metal spark plugs designed to deliver stable ignition and extended service life for GM V8 engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese spark plugs pair an iridium-tipped center electrode with a platinum core to offer a balance of high ignition performance and durability. Built to OEM-equivalent specifications — including a 0.044 in gap, 14 mm thread diameter and 5\/8 in hex — this set suits numerous Cadillac, Chevrolet and GMC V8 applications. The plugs are intended as long-life replacements, with manufacturer guidance recommending inspection or replacement around 80,000–100,000 miles depending on driving conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engines will accept these spark plugs?\u003c\/h3\u003e\n\u003cp\u003eThese A-Premium plugs are engineered to fit a wide range of General Motors V8 engines, from 5.3L to 6.6L. They cover many model years for Cadillac Escalade, Chevrolet Camaro, Corvette, Silverado, Suburban and Tahoe as well as GMC Sierra and Yukon variants. Always cross-check part numbers and engine codes before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Cadillac Escalade \u0026amp; Escalade ESV 2015–2023 (V8 6.2L)\u003c\/li\u003e\n  \u003cli\u003eFits Chevrolet Camaro 2016–2020 and Corvette 2014–2019 (V8 6.2L)\u003c\/li\u003e\n  \u003cli\u003eFits Silverado and Sierra 1500 (2014–2023) 5.3L and 6.2L engines\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with HD trucks and full-size SUVs including Suburban, Tahoe, Yukon lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do iridium and platinum combine to improve spark plug performance?\u003c\/h3\u003e\n\u003cp\u003eThe center electrode uses iridium for a precise, wear-resistant tip while a platinum core adds structural stability and longevity. This dual-metal approach produces a fine-wire electrode that conducts reliably at high temperatures and resists erosion over long service intervals. The result is consistent ignition, easier starts and less frequent replacement versus standard copper plugs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium tip for precise spark and superior wear resistance\u003c\/li\u003e\n  \u003cli\u003ePlatinum core for strength and longer electrode life\u003c\/li\u003e\n  \u003cli\u003eFine-wire design lowers voltage requirements for ignition\u003c\/li\u003e\n  \u003cli\u003eResists electrode degradation across extended mileage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the technical specifications I should know before installing?\u003c\/h3\u003e\n\u003cp\u003eThese plugs are manufactured to specific dimensions and electrical resistance to match OEM expectations. Key specifications include a 0.044 in pre-set gap, 5\/8 in hex size for standard sockets, 25 mm reach, and 14 mm thread diameter. They include a 5000-ohm resistor to reduce radio frequency interference and help meet modern vehicle electronics requirements.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGap size: 0.044 inches (factory-set)\u003c\/li\u003e\n  \u003cli\u003eThread: 14 mm diameter, 25 mm reach, 53 mm insulator height\u003c\/li\u003e\n  \u003cli\u003eHex size: 5\/8 inch for typical spark-plug sockets\u003c\/li\u003e\n  \u003cli\u003eResistance: 5000 ohms to suppress interference\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow often should these spark plugs be replaced?\u003c\/h3\u003e\n\u003cp\u003eIridium\/platinum combination plugs are designed for long service life, but replacement interval depends on driving habits and engine condition. A practical guideline is to inspect or replace them between 80,000 and 100,000 miles, or sooner if there are signs of misfiring, rough idle, or difficulty starting. Regular tune-ups and using the correct torque on installation help preserve longevity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended inspection\/replacement: 80,000–100,000 miles\u003c\/li\u003e\n  \u003cli\u003eReplace sooner if you experience misfires or poor starts\u003c\/li\u003e\n  \u003cli\u003eUse correct torque and anti-seize practices while installing\u003c\/li\u003e\n  \u003cli\u003eFollow vehicle manufacturer service intervals and diagnostics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These A-Premium iridium platinum spark plugs are aimed at owners and technicians of GM full-size trucks, SUVs and performance V8 cars who want an OEM-spec, long-life replacement. They suit anyone replacing all eight plugs in V8 engines — from DIY home mechanics to professional shops — seeking reliable ignition, reduced maintenance frequency and compatibility with modern vehicle electronics.\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 spark plugs compatible with my 2016 Chevrolet Silverado 5.3L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. These A-Premium plugs fit many Silverado 1500 2014–2023 5.3L engines—confirm with your engine code and part cross-reference before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these plugs require gapping before installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They ship with a factory-set 0.044 in gap, but it's wise to verify the gap matches your vehicle's specification before installing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":48083268239518,"sku":"B0CH18HK31","price":55.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/a-premium-front-packaging_a4c14106-5e7b-472a-9799-e536d7941135.jpg?v=1785830321","url":"https:\/\/northtrailauto.ca\/products\/a-premium-iridium-platinum-spark-plugs-for-gm-v8-pack-of-8-fine-wire-iridium-tip-platinum-core-oem-fit","provider":"North Trail Auto","version":"1.0","type":"link"}