{"product_id":"a-naftuly-iridium-spark-plugs-8-pack-91418-for-gm-5-3l-6-2l-v8-0-6mm-tip-laser-welded-durability","title":"A-NAFTULY Iridium Spark Plugs 8-Pack 91418 for GM 5.3L\/6.2L V8 — 0.6mm Tip, Laser-Welded Durability","description":"\u003cp\u003e\u003cstrong\u003eA-NAFTULY Iridium Spark Plugs 8 Pack 91418 are precision iridium replacement plugs engineered to restore stable ignition and efficient combustion in GM 5.3L and 6.2L V8 engines from 2014–2023.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese eight high-performance spark plugs are built with a fine 0.6mm iridium center electrode and laser-welded construction intended for long service life and consistent spark delivery. They match multiple OE references and are designed specifically for many Chevrolet, GMC and Cadillac V8 models, offering an affordable alternative to dealer parts without sacrificing fit or function. The set aims to reduce common ignition symptoms like misfires and rough idle while improving fuel efficiency when used as part of a properly maintained ignition system.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles are these A-NAFTULY 91418 plugs compatible with?\u003c\/h3\u003e\n\u003cp\u003eThese spark plugs cover a wide range of GM V8 applications across model years 2014–2023. Refer to your vehicle’s service manual and the part references to confirm fitment before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChevrolet: Silverado 1500 (5.3L\/6.2L), Silverado 2500\/3500 HD (6.6L), Tahoe, Suburban, Camaro, Corvette\u003c\/li\u003e\n  \u003cli\u003eGMC: Sierra 1500, Sierra 2500\/3500 HD, Sierra 1500 Limited, Yukon, Yukon XL\u003c\/li\u003e\n  \u003cli\u003eCadillac: Escalade and Escalade ESV with 6.2L V8\u003c\/li\u003e\n  \u003cli\u003eCross-references include 91418, ILTR5E11, 12598004 and others for verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these iridium plugs affect fuel economy and performance?\u003c\/h3\u003e\n\u003cp\u003eThe fine iridium tip concentrates the spark energy, promoting more complete combustion and smoother throttle response. Better ignition consistency can help your engine run more efficiently under normal operating conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e0.6mm iridium center electrode for a strong, focused spark\u003c\/li\u003e\n  \u003cli\u003eLaser-welded tip for consistent electrical contact and longevity\u003c\/li\u003e\n  \u003cli\u003eDesigned to address misfires, rough idle, and poor fuel economy caused by worn plugs\u003c\/li\u003e\n  \u003cli\u003eProvides stable ignition across common engine speeds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat symptoms might indicate it’s time to replace my spark plugs?\u003c\/h3\u003e\n\u003cp\u003eIf your vehicle shows ignition-related problems, worn spark plugs are a common and cost-effective starting point to inspect. Changing to a fresh set of iridium plugs can often resolve several driveability issues when coils and wiring are in good condition.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngine misfire codes or intermittent misfiring under load\u003c\/li\u003e\n  \u003cli\u003eRough idling, stalling, or inconsistent throttle response\u003c\/li\u003e\n  \u003cli\u003eNoticeable drop in fuel efficiency or engine hesitation\u003c\/li\u003e\n  \u003cli\u003eVisible electrode erosion or excessive carbon buildup on removed plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included and what support does A-NAFTULY provide?\u003c\/h3\u003e\n\u003cp\u003eThe product ships as a package of eight iridium spark plugs with quality checks performed during production. A-NAFTULY backs the set with customer support and a limited warranty period to help resolve fitment or performance concerns.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePackage contains 8 A-NAFTULY iridium spark plugs (91418 compatible)\u003c\/li\u003e\n  \u003cli\u003eManufacturing references listed for cross-checking OEM numbers\u003c\/li\u003e\n  \u003cli\u003e12-month limited warranty and responsive customer support\u003c\/li\u003e\n  \u003cli\u003eSold as replacement plugs; professional installation recommended for best results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers and DIY technicians who own GM trucks and SUVs with 5.3L or 6.2L V8 engines and want a long-lasting, OEM-replacement style spark plug at a competitive price. If your vehicle’s coils and wiring are in good condition and you’re troubleshooting misfires, rough idle, or lowered fuel economy, this 8-pack offers a practical upgrade with iridium durability for day-to-day driving and towing duties.\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 plugs compatible with my 2018 Chevy Silverado 5.3L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the A-NAFTULY 91418 iridium set fits many 2014–2023 Silverado 5.3L models; verify using your VIN or OEM part cross-reference.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do A-NAFTULY iridium spark plugs typically last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Iridium plugs often outlast conventional plugs; longevity depends on driving and maintenance, but many users see extended service life versus standard plugs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-NAFTULY","offers":[{"title":"Default Title","offer_id":48086155788446,"sku":"B0DD7K3NCJ","price":49.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/a-naftuly-front-packaging-iridium-91418.jpg?v=1785887244","url":"https:\/\/northtrailauto.ca\/products\/a-naftuly-iridium-spark-plugs-8-pack-91418-for-gm-5-3l-6-2l-v8-0-6mm-tip-laser-welded-durability","provider":"North Trail Auto","version":"1.0","type":"link"}