{"product_id":"x4xz-ignition-coil-double-iridium-spark-plug-kit-for-toyota-tundra-2000-2009-8-pack-coils-8-plugs-oe-fit-longer-life","title":"X4XZ Ignition Coil \u0026 Double‑Iridium Spark Plug Kit for Toyota Tundra 2000–2009 — 8‑Pack Coils + 8 Plugs, OE Fit \u0026 Longer Life","description":"\u003cstrong\u003eComplete ignition coil and double‑iridium spark plug kit engineered to restore reliable starts, smoother idling, and consistent combustion for compatible Toyota and Lexus V8 engines.\u003c\/strong\u003e\n\n\u003cp\u003eThis X4XZ UF230 + 4504 kit pairs eight replacement ignition coil packs with eight double‑iridium spark plugs designed for Toyota Tundra (2000–2009) and a range of Toyota and Lexus V8 models. Every component is built to align with or improve on original equipment form and function, offering longer service life, better electrical transfer and reduced interference compared with worn factory units. The kit comes ready for installation without an instruction manual and is backed by X4XZ customer support.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will these ignition parts fit?\u003c\/h3\u003e\n\u003cp\u003eThe kit covers multiple Toyota and Lexus V8 models across late 1990s to 2010 model years. It fits 4.7L and several 4.3L and 5.7L applications—confirm compatibility with your VIN or engine code before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eToyota Tundra 4.7L (2000–2009) and Toyota Sequoia 4.7L (2001–2009)\u003c\/li\u003e\n  \u003cli\u003eToyota 4Runner 4.7L (2003–2009) and Land Cruiser 4.7L (1998–2007)\u003c\/li\u003e\n  \u003cli\u003eLexus GS430, LS430, SC430 (4.3L) and GX470, LX470, LX570 (4.7L\/5.7L) years as listed\u003c\/li\u003e\n  \u003cli\u003eOE and replacement numbers included (UF230, 4504, 90919‑02230 and related cross‑references)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do the ignition coils and double‑iridium plugs improve engine behavior?\u003c\/h3\u003e\n\u003cp\u003eNew coils restore correct high‑voltage delivery to each cylinder while the double‑iridium plugs provide a stable, long‑lasting spark. Together they reduce misfires, improve idle smoothness and help maintain fuel economy compared to degraded ignition parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIgnition coils use thermoplastic connectors and internal ferrite suppressors to resist heat and interference\u003c\/li\u003e\n  \u003cli\u003eDouble‑iridium electrodes offer consistent sparks and extended durability—rated for long service intervals\u003c\/li\u003e\n  \u003cli\u003eReplaces common OE part numbers for direct fit and reliable performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the key build features and quality details?\u003c\/h3\u003e\n\u003cp\u003eX4XZ designed this kit with materials intended to handle thermal cycling, vibration and electrical stress typical in V8 engines. The coil springs are stainless steel and the coil housings use heat‑resistant plastics to preserve long‑term connectivity and reduce radio frequency interference.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePremium materials for coils and reinforced connectors to resist cracking and heat damage\u003c\/li\u003e\n  \u003cli\u003eInternal noise suppressor reduces RFI that can affect electronics and ignition timing\u003c\/li\u003e\n  \u003cli\u003eSpark plugs feature iridium electrodes for longevity and consistent combustion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what support does X4XZ provide?\u003c\/h3\u003e\n\u003cp\u003eThese parts are manufactured to fit like OE replacements, allowing quicker, straightforward swaps for technicians or experienced DIYers. The package excludes a printed manual but X4XZ offers responsive customer service for installation and warranty questions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePack includes eight ignition coil packs and eight double‑iridium spark plugs — ready to install\u003c\/li\u003e\n  \u003cli\u003eNo printed instruction manual included; customer support available 24\/7\u003c\/li\u003e\n  \u003cli\u003e1‑year product service coverage from X4XZ for defects and installation issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This kit is aimed at owners and mechanics working on Toyota and Lexus V8 models listed in the compatibility notes who need a full ignition set—drivers experiencing misfire codes, rough idle, or diminished performance and anyone performing routine scheduled maintenance seeking longer‑lasting spark plugs and reliable coil packs.\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: Will these parts fit my 2005 Toyota Tundra 4.7L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this kit lists compatibility with Toyota Tundra 4.7L models from 2000–2009. Verify your VIN or engine code for exact fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do the double‑iridium spark plugs last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Double‑iridium plugs are designed for extended service life, typically far longer than standard plugs—expect long intervals under normal use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"X4XZ","offers":[{"title":"Default Title","offer_id":48082826035358,"sku":"B0CQS7BHF4","price":154.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/x4xz-kit-front-packaging_a4a7a3a4-8180-4400-886e-3234661cc77a.jpg?v=1785815673","url":"https:\/\/northtrailauto.ca\/products\/x4xz-ignition-coil-double-iridium-spark-plug-kit-for-toyota-tundra-2000-2009-8-pack-coils-8-plugs-oe-fit-longer-life","provider":"North Trail Auto","version":"1.0","type":"link"}