{"product_id":"x4xz-double-iridium-spark-plugs-41-109-6-pack-direct-fit-for-gm-v6-3-6l-long-life-ignition","title":"X4XZ Double Iridium Spark Plugs 41-109 6-Pack — Direct-Fit for GM V6 3.6L, Long-Life Ignition","description":"\u003cp\u003e\u003cstrong\u003eX4XZ 41-109 double iridium spark plug 6-pack delivers durable, high-ignitability replacement ignition for compatible GM V6 engines.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese double iridium spark plugs are engineered to match or improve on original equipment specifications for many GM models, offering longer service life, reliable starts and consistent combustion. Designed as a direct-fit replacement with OE references including 41-109 and compatible cross-numbers, this set of six helps restore engine smoothness and throttle response when aging or fouled plugs cause rough idling or weak acceleration.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engines will these spark plugs fit?\u003c\/h3\u003e\n\u003cp\u003eThe X4XZ 41-109 plugs fit a wide range of GM V6 applications across Cadillac, Chevrolet, GMC, Buick and Saturn models, mainly 3.6L and selected 3.0L engines from model years around 2010–2018. Check the listed cross-reference numbers against your vehicle's original part number before purchasing to ensure correct fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCadillac: ATS 2013–2015 3.6L; CTS 2010–2015 3.0L\/3.6L; SRX 2010–2016 3.6L\/3.0L; STS 2010–2011 3.6L; XTS 2013–2018 3.6L.\u003c\/li\u003e\n  \u003cli\u003eChevrolet: Camaro 2010–2015 3.6L; Caprice 2012–2017 3.6L; Colorado 2015–2016 3.6L; Equinox 2010–2015\/2012–2017 3.0L\/3.6L; Impala and Traverse fits noted years.\u003c\/li\u003e\n  \u003cli\u003eGMC, Buick, Saturn: Acadia\/Terrain\/Canyon fits and Buick Enclave\/LaCrosse plus Saturn Outlook\/Vue V6 models as listed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do double iridium spark plugs improve engine performance?\u003c\/h3\u003e\n\u003cp\u003eIridium center electrodes provide a harder, finer firing tip than standard materials, requiring less voltage to produce a strong spark. That leads to better ignitability, quicker starts and more complete fuel combustion without changing your engine management system.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFiner electrode tip improves spark focus and reduces misfires.\u003c\/li\u003e\n  \u003cli\u003eHigher durability extends service intervals—rated for long operating life up to about 100,000 kilometers.\u003c\/li\u003e\n  \u003cli\u003eConsistent spark reduces rough idling and enhances throttle response.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the exact part references and what's included in the package?\u003c\/h3\u003e\n\u003cp\u003eThe primary part number for this set is OE# 41-109. It also replaces common cross-reference numbers such as 41109, 90117, APP5683, PTV16TT, QSP5 and 12622561 ILT6RE11. The product ships as a pack of six double iridium spark plugs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes: X4XZ Double Iridium Spark Plug × 6 (no instruction manual included).\u003c\/li\u003e\n  \u003cli\u003ePrimary OE reference: 41-109; multiple compatible cross-numbers provided for verification.\u003c\/li\u003e\n  \u003cli\u003eDesigned for fast, straightforward swap-in replacement of worn OE plugs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these plugs easy to install and is support available if needed?\u003c\/h3\u003e\n\u003cp\u003eInstallation follows the same basic procedure as original spark plugs; torque, gap and ignition coil handling should follow your vehicle manufacturer's instructions. The design matches OE dimensions to simplify fitment, and the seller offers customer support for product or installation questions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSold without a printed manual—refer to vehicle service documentation for torque and gap specs.\u003c\/li\u003e\n  \u003cli\u003e24-hour customer service and one-year product support from the seller.\u003c\/li\u003e\n  \u003cli\u003eMatch plug type and cross-reference numbers before fitting to avoid installation issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Drivers and technicians who maintain GM V6 vehicles (notably Cadillac, Chevrolet, GMC, Buick and Saturn models listed) and seek a long-life, high-ignitability replacement spark plug will benefit from the X4XZ 41-109 double iridium 6-pack. It's aimed at owners wanting better starts, steadier idle and longer service intervals than standard plugs provide, while keeping compatibility with original engine specs.\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: Do these plugs fit a 2014 Chevy Equinox 3.0L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the X4XZ 41-109 double iridium plugs list compatibility with 2010–2012 Equinox 3.0L and 2013–2017 Equinox 3.6L; verify your exact OE part number before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do the iridium spark plugs typically last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: These double iridium plugs are rated for extended life—commonly up to around 100,000 kilometers under normal driving conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"X4XZ","offers":[{"title":"Default Title","offer_id":55168571474263,"sku":"B0CP36728C","price":47.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/x4xz-double-iridium-six-pack-front-view.jpg?v=1790408655","url":"https:\/\/britishgarage.co.uk\/products\/x4xz-double-iridium-spark-plugs-41-109-6-pack-direct-fit-for-gm-v6-3-6l-long-life-ignition","provider":"British Garage","version":"1.0","type":"link"}