{"product_id":"a-naftuly-iridium-spark-plugs-6-pack-for-nissan-infiniti-3-5l-v6-0-6mm-fine-wire-laser-welded-durability","title":"A-NAFTULY Iridium Spark Plugs 6-Pack for Nissan\/Infiniti 3.5L V6 — 0.6mm Fine-Wire, Laser-Welded Durability","description":"\u003cp\u003e\u003cstrong\u003eA-NAFTULY Iridium Spark Plugs (6-pack) are high-durability, fine-wire iridium replacements engineered to restore reliable ignition and better fuel efficiency for many Nissan, Infiniti, Toyota, Hyundai and Kia V6 engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese replacement spark plugs (reference numbers include 4469, LFR5AIX-11 and variants) use a 0.6 mm iridium fine-wire center electrode and laser-welded construction for improved wear resistance and consistent spark performance. Sold as a set of six, they match OEM specifications for a wide range of 3.5L and 4.0L V6 engines — including Nissan Altima, Maxima, Murano, Pathfinder, Frontier, Xterra and Infiniti G35\/FX35 models — plus additional compatible vehicles listed in the product details. The plugs are intended to deliver stable combustion, longer service life and optimized fuel use without major engine modifications.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these plugs change starting, throttle response and idle quality?\u003c\/h3\u003e\n\u003cp\u003eBecause of the fine-wire iridium center electrode and precise gap control, these plugs promote stronger, more consistent sparks across operating conditions. That typically improves cold starts, smooths idle, and sharpens initial throttle response compared with worn or fouled plugs. Results depend on engine condition and proper installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e0.6 mm iridium center electrode for focused spark energy\u003c\/li\u003e\n  \u003cli\u003eLaser-welded tip for consistent spark location and longevity\u003c\/li\u003e\n  \u003cli\u003eMatched gap and OE-style threads for reliable installation\u003c\/li\u003e\n  \u003cli\u003eSold in a 6-pack to replace all V6 cylinder plugs at once\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich engines and vehicles are these A-NAFTULY plugs compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis set is designed to fit many Nissan and Infiniti V6 models (notably 3.5L and some 4.0L applications) and several other makes where the LFR5AIX11 equivalent is specified. Always cross-check the reference numbers and your vehicle’s service manual before ordering to ensure the correct part for your model year and engine.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommon Nissan fits: Altima, Maxima, Murano, 350Z, Frontier, Pathfinder, Quest, Xterra, NV models\u003c\/li\u003e\n  \u003cli\u003eCommon Infiniti fits: G35, FX35, I35, M35, QX4\u003c\/li\u003e\n  \u003cli\u003eAdditional compatible vehicles include select Toyota, Hyundai and Kia models where applicable\u003c\/li\u003e\n  \u003cli\u003eReference numbers included to confirm compatibility (4469, LFR5AIX-11, XP5325, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and construction features improve durability and economy?\u003c\/h3\u003e\n\u003cp\u003eThe center electrode is an iridium alloy, which offers a much higher melting point and greater hardness than platinum, so it resists erosion and electrical wear. Laser welding secures the fine-wire tip, reducing the chance of tip displacement and maintaining consistent performance over many miles. These design choices aim to prolong service life and support efficient combustion.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium fine-wire electrode — high heat resistance and wear durability\u003c\/li\u003e\n  \u003cli\u003eLaser-welded tip for mechanical and electrical stability\u003c\/li\u003e\n  \u003cli\u003eOE-style shell and sealing washer for proper seat and compression\u003c\/li\u003e\n  \u003cli\u003eManufactured to meet electrical and fitment standards for the specified vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDo these plugs come with warranty or customer support?\u003c\/h3\u003e\n\u003cp\u003eA-NAFTULY includes a 12-month limited warranty with the 6-pack, and customer support is available for fitment or product questions. Keep proof of purchase and follow recommended installation practices to avoid installation-related issues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSet includes six iridium spark plugs for complete V6 replacement\u003c\/li\u003e\n  \u003cli\u003e12-month worry-free warranty from A-NAFTULY\u003c\/li\u003e\n  \u003cli\u003eCustomer support for fitment and post-purchase assistance\u003c\/li\u003e\n  \u003cli\u003eFollow torque and gap specs per vehicle service manual for best results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers and independent mechanics who need an OEM-equivalent, long-life spark plug option for mid-2000s Nissan and Infiniti V6 engines (and other compatible vehicles), aiming for improved ignition stability and reduced maintenance frequency. If you prefer a direct-fit replacement that emphasizes durability and consistent combustion, this A-NAFTULY 6-pack addresses those priorities while matching common OE reference numbers.\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 iridium plugs a direct fit for my 2004 Nissan Maxima 3.5L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this A-NAFTULY set lists compatibility with 2002–2008 Maxima 3.5L, but verify with your vehicle’s service manual or the reference numbers before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do these iridium spark plugs typically last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Iridium plugs often last longer than standard plugs; lifespan varies by driving conditions, but they are built for extended durability versus conventional electrodes.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-NAFTULY","offers":[{"title":"Default Title","offer_id":55166100472151,"sku":"B0DD7GW9D9","price":37.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/a-naftuly-iridium-spark-plugs-front-packaging.jpg?v=1790362923","url":"https:\/\/britishgarage.co.uk\/products\/a-naftuly-iridium-spark-plugs-6-pack-for-nissan-infiniti-3-5l-v6-0-6mm-fine-wire-laser-welded-durability","provider":"British Garage","version":"1.0","type":"link"}