{"product_id":"ngk-iridium-ix-spark-plugs-lfr5aix-11-4-pack-for-toyota-camry-2-5l-iridium-tip-oe-fit","title":"NGK Iridium IX spark plugs LFR5AIX-11 (4 pack) for Toyota Camry 2.5L — iridium tip, OE fit","description":"\u003cp\u003e\u003cstrong\u003eNGK Iridium IX LFR5AIX-11 spark plugs are premium iridium-tipped ignition parts engineered for consistent sparks and long service life in Toyota Camry 2.5L engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese four NGK Iridium IX spark plugs replace factory items on Toyota Camry LE models with the 2.5L (2494 cc) 4-cylinder engine from 2010–2014. Built around an ultra-fine iridium center electrode and a copper core, the design lowers the voltage needed for reliable ignition while resisting wear under high temperature and stress. The projected insulator and gasket seat match OE fitment, and the 14mm threads with 1.043 inch reach ensure proper engagement in the cylinder head.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these spark plugs improve ignition consistency?\u003c\/h3\u003e\n\u003cp\u003eThe very fine iridium center electrode concentrates the spark to a smaller point, producing a repeatable, focused discharge that helps the engine ignite the fuel-air mix more reliably. That steadier spark reduces misfires and supports smoother idle and throttle response.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium tip for a precise, concentrated spark\u003c\/li\u003e\n  \u003cli\u003eCopper core for good conductivity and heat transfer\u003c\/li\u003e\n  \u003cli\u003eProjected insulator promotes stable combustion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these fit my Toyota Camry 2010–2014 2.5L without modifications?\u003c\/h3\u003e\n\u003cp\u003eYes — these NGK LFR5AIX-11 plugs are designed to match the factory specifications for Camry LE 2.5L engines from 2010 through 2014. They use the same 14mm thread diameter, 1.043-inch reach and gasket seat style, so installation follows standard spark plug replacement procedures.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThread size: 14mm, reach: 1.043 in — OE-compatible\u003c\/li\u003e\n  \u003cli\u003eSeat type: gasket — matches factory sealing method\u003c\/li\u003e\n  \u003cli\u003eWrench diameter 5\/8 in for common spark plug sockets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long can I expect these plugs to last compared to standard plugs?\u003c\/h3\u003e\n\u003cp\u003eIridium is far harder and more wear-resistant than conventional materials, so Iridium IX plugs typically deliver longer service intervals than standard copper-only plugs. Actual lifespan depends on driving style, engine condition and service schedule, but iridium tips generally retain their gap and performance longer.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable iridium tips resist electrode erosion\u003c\/li\u003e\n  \u003cli\u003eCopper core helps dissipate heat, protecting the tip\u003c\/li\u003e\n  \u003cli\u003eSold as a 4-pack for a full-cylinder set replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there any installation or handling notes I should know?\u003c\/h3\u003e\n\u003cp\u003eHandle iridium plugs carefully to avoid damaging the fine center electrode; torque them to the vehicle manufacturer’s spec to secure the gasket seat without crushing the insulator. Use a 5\/8-inch spark plug socket and verify correct gap if required by your service procedure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDo not over-torque — follow Toyota torque specs\u003c\/li\u003e\n  \u003cli\u003eUse correct 5\/8 in socket and extension for access\u003c\/li\u003e\n  \u003cli\u003eInspect gap and replace in matched sets when changing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: NGK Iridium IX LFR5AIX-11 plugs are aimed at Toyota Camry owners and mechanics who want a long-lasting, OE-fit spark plug upgrade for the 2.5L 4-cylinder engine. They suit drivers seeking improved ignition consistency, reduced maintenance frequency, and a direct-fit replacement that uses factory thread, reach, and seat style. Ideal for routine tune-ups, these plugs are also a good choice when restoring spark performance after misfires, rough idle, or when preparing the engine for higher-demand driving conditions.\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 NGK plugs a direct replacement for Camry 2010–2014 2.5L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They use 14mm threads, 1.043 inch reach and a gasket seat to match OE fitment for those Camry models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many spark plugs are included in the pack?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This listing contains a four-pack, enough to replace all cylinders on a 4-cylinder Camry engine.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":48086301966494,"sku":"B07RL98RX6","price":49.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ngk-iridium-ix-front-packaging_c2f8d83a-fc9a-4038-872a-ab04394cc019.jpg?v=1785894455","url":"https:\/\/northtrailauto.ca\/products\/ngk-iridium-ix-spark-plugs-lfr5aix-11-4-pack-for-toyota-camry-2-5l-iridium-tip-oe-fit","provider":"North Trail Auto","version":"1.0","type":"link"}