{"product_id":"a-naftuly-iridium-spark-plugs-8-pack-for-chevy-gmc-cadillac-v8-fine-wire-iridium-long-life","title":"A-NAFTULY Iridium Spark Plugs 8-Pack for Chevy GMC Cadillac V8 — Fine-Wire Iridium, Long Life","description":"\u003cstrong\u003eA-NAFTULY Iridium Spark Plugs 8-pack replaces worn OEM plugs for many V8 engines, providing long-lasting ignition performance for Chevrolet, GMC, Cadillac and compatible vehicles.\u003c\/strong\u003e\n\nThese eight iridium-tipped spark plugs are built for late‑model V8 engines and many popular full‑size trucks and SUVs. Designed with a fine‑wire iridium center electrode and durable construction, this set is intended as an aftermarket replacement that matches numerous factory reference numbers (7397, TR5IX, 3186, TR5GP and others). What follows is clear guidance on fitment, benefits, installation considerations and who benefits most from this set.\n\n\u003ch3\u003eWhich vehicles will these iridium plugs fit?\u003c\/h3\u003e\n\u003cp\u003eThese spark plugs are compatible with a wide range of V8 engines from GM and select Ford applications. Fitment covers many Chevrolet Silverado, Tahoe, Avalanche, Camaro models and GMC Sierra, Yukon, Savana lines, as well as Cadillac Escalade models; Ford F‑series and some Hummer, Pontiac and Saab V8s are included in cross‑reference lists. Always verify part numbers and engine displacement before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommon Chevrolet fits: Silverado 1500\/2500\/3500, Tahoe, Avalanche, Camaro (selected years)\u003c\/li\u003e\n  \u003cli\u003eCommon GMC fits: Sierra 1500\/2500\/3500, Yukon, Canyon, Savana\u003c\/li\u003e\n  \u003cli\u003eCadillac, Buick and other compatible models: Escalade, CTS, LaCrosse, Rainier\u003c\/li\u003e\n  \u003cli\u003eSelected Ford and Hummer V8s, plus Pontiac and Saab models — confirm engine size and year\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat material and construction features matter for engine performance?\u003c\/h3\u003e\n\u003cp\u003eThe plugs use an iridium fine‑wire center electrode, an alloy chosen for high melting point and resistance to wear compared with platinum. Iridium’s hardness and heat tolerance help maintain a stable spark gap longer, which supports consistent combustion in higher‑demand engines. Robust construction and quality control aim to reduce misfires and extend service intervals when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFine‑wire iridium center electrode for long life and stable spark\u003c\/li\u003e\n  \u003cli\u003eHigh melting point alloy resists heat and electrical erosion\u003c\/li\u003e\n  \u003cli\u003eManufactured as a set of eight to service V8 engines in one job\u003c\/li\u003e\n  \u003cli\u003eCross‑referenced to many OEM numbers for easier replacement matching\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and maintain these spark plugs?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires the correct torque and anti‑seize or thread lubricant per vehicle manufacturer guidelines; improper torque can damage the plug or cylinder head. Replace plugs as part of routine maintenance and inspect ignition components (wires\/coils) at the same time to ensure reliable firing. If unsure, have a qualified technician perform the installation to protect the engine and warranty coverage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck vehicle service manual for torque specs and gap settings\u003c\/li\u003e\n  \u003cli\u003eReplace in matched sets and inspect ignition coils\/wires\u003c\/li\u003e\n  \u003cli\u003eUse proper tools: torque wrench and plug socket with insulator protector\u003c\/li\u003e\n  \u003cli\u003eAdhere to recommended service intervals for iridium plugs (manufacturer dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does the package include and what support is available?\u003c\/h3\u003e\n\u003cp\u003eThis listing contains a set of eight iridium spark plugs suitable for V8 engines and several cross‑reference numbers. A-NAFTULY includes a 12‑month limited support window and customer service for any fitment or product concerns. Keep your original purchase details and vehicle information handy when contacting support.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSet of 8 iridium spark plugs in one package\u003c\/li\u003e\n  \u003cli\u003eCross‑referenced part numbers included for easier matching\u003c\/li\u003e\n  \u003cli\u003e12‑month worry‑free customer support from A-NAFTULY\u003c\/li\u003e\n  \u003cli\u003eContact support with vehicle year, make, model and engine size for help\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for: Drivers and technicians who maintain V8 trucks and SUVs and need a cost‑effective, long‑lasting aftermarket replacement. This set suits owners of Chevrolet, GMC and Cadillac vehicles wanting direct‑swap plugs compatible with many OEM references, and fleet or DIY mechanics who prefer an eight‑piece pack to service entire engines at once. If your vehicle matches the listed engine sizes and years, these plugs are a practical replacement option when installed per manufacturer guidelines.\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 a 5.3L Chevy Silverado?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — this 8‑pack lists fitment for many 5.3L Chevrolet Silverado model years; verify your engine year and reference number before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these plugs require special gapping before installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They are typically pre‑gapped to common OEM specs, but you should confirm and adjust gap per your vehicle’s service manual.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-NAFTULY","offers":[{"title":"Default Title","offer_id":48086155591838,"sku":"B0DD7JV28X","price":48.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/a-naftuly-plugs-front-packaging_e8d537cc-367f-4d7a-944b-dbd01c0a7e51.jpg?v=1785887244","url":"https:\/\/northtrailauto.ca\/products\/a-naftuly-iridium-spark-plugs-8-pack-for-chevy-gmc-cadillac-v8-fine-wire-iridium-long-life","provider":"North Trail Auto","version":"1.0","type":"link"}