{"product_id":"a-premium-iridium-platinum-spark-plugs-pack-of-8-fine-wire-for-gm-v8-long-life-oe-fit","title":"A-Premium Iridium Platinum Spark Plugs Pack of 8 — Fine-Wire for GM V8, Long Life \u0026 OE Fit","description":"\u003cstrong\u003eA-Premium Iridium Platinum Spark Plugs (pack of 8) are high-durability fine-wire ignition plugs engineered for many GM V8 engines, built to deliver consistent spark performance and long service life.\u003c\/strong\u003e\n\n\u003cp\u003eThis set of eight A-Premium iridium platinum spark plugs is made for V8 applications and fits a wide range of Chevy, GMC and Cadillac engines. Combining an iridium fine-wire center electrode with a platinum-enhanced ground electrode, these plugs are designed to offer stable ignition, extended wear resistance and a precise gap for modern high-compression engines. The kit replaces several OE and aftermarket reference numbers, making it a convenient option for owners doing tune-ups on multiple model years.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will these A-Premium plugs fit?\u003c\/h3\u003e\n\u003cp\u003eThese spark plugs are compatible with many GM V8 models across Chevrolet, GMC and Cadillac lines, covering model years from the late 1990s up through the 2010s. Always verify compatibility with your engine code or by cross-referencing the plug reference numbers before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCadillac CTS, Escalade, SRX, STS and XLR V8 model fitment\u003c\/li\u003e\n  \u003cli\u003eChevrolet Silverado, Tahoe, Avalanche, Camaro, Corvette, Colorado, Express series\u003c\/li\u003e\n  \u003cli\u003eGMC Sierra, Yukon, Canyon, Savana, Envoy and other V8 variants\u003c\/li\u003e\n  \u003cli\u003eReplaces references like 7397, TR5IX, XP5243 and BPR5EFVX for easier cross-checking\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do iridium and platinum electrodes benefit ignition?\u003c\/h3\u003e\n\u003cp\u003eIridium and platinum are used for their hardness and high melting points, which help the electrodes resist erosion and maintain the factory gap over longer service intervals. The fine-wire iridium center electrode reduces voltage requirements for spark formation, promoting cleaner combustion and more reliable starts under a range of conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium center electrode: lower voltage threshold and precise spark\u003c\/li\u003e\n  \u003cli\u003ePlatinum ground electrode: extended life and consistent gap retention\u003c\/li\u003e\n  \u003cli\u003eFine-wire design: improved ignitability and throttle response\u003c\/li\u003e\n  \u003cli\u003eDurable construction: resists wear in high-temperature combustion environments\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 service procedures: remove old plugs, inspect threads and seats, torque to the vehicle manufacturer specification, and reconnect ignition components. Because these plugs are pre-gapped for many V8 applications, minor checking and adjustment may be all that's needed before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck vehicle-specific torque settings; avoid over-tightening\u003c\/li\u003e\n  \u003cli\u003eInspect spark plug wells and ignition coils for damage or oil contamination\u003c\/li\u003e\n  \u003cli\u003eConfirm gap and adjust only if necessary per engine specs\u003c\/li\u003e\n  \u003cli\u003eUse anti-seize cautiously — follow manufacturer guidance to prevent torque errors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Mechanics, DIY enthusiasts and fleet owners who service GM V8 engines and want a cost-effective replacement with extended life characteristics will find this A-Premium pack suitable. It’s ideal for routine tune-ups on trucks, SUVs and performance cars where iridium and platinum plugs are recommended or where longer intervals between changes are desired. Always confirm fitment against your vehicle’s year, engine size and service manual before installation.\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 A-Premium plugs pre-gapped for my V8?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They come pre-gapped for many listed V8 applications, but always verify and adjust to your vehicle's spec before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can these replace OEM iridium or platinum spark plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They cross-reference common OEM numbers and fit many GM V8 engines, but confirm exact compatibility first.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":48086186786974,"sku":"B0CJFTGRFT","price":48.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/a-premium-front-packaging_1cd2d02c-401f-43b9-92d1-9d7d23375bac.jpg?v=1785889002","url":"https:\/\/northtrailauto.ca\/products\/a-premium-iridium-platinum-spark-plugs-pack-of-8-fine-wire-for-gm-v8-long-life-oe-fit","provider":"North Trail Auto","version":"1.0","type":"link"}