{"product_id":"kacuyelin-double-iridium-spark-plugs-set-of-6-ford-lincoln-3-5l-compatible-oe-94374","title":"KacuYelin Double Iridium Spark Plugs Set of 6 — Ford\/Lincoln 3.5L Compatible, OE 94374","description":"\u003cp\u003e\u003cstrong\u003eKacuYelin Double Iridium spark plugs (set of 6) are high-durability ignition parts designed to restore reliable firing and improve ignition stability for compatible Ford and Lincoln 3.5L engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese spark plugs are engineered with dual-iridium electrodes to resist wear and maintain a consistent high-voltage arc over extended service intervals. Sold as a set of six, the plugs match OE reference numbers including 94374 and LTR6IX and fit a wide range of Ford vehicles (F-150, Expedition, Explorer, Transit, Taurus, Flex, Edge, Fusion and Police Interceptor models) and select Lincoln models. KacuYelin manufactures these plugs in TS16949-capable facilities and runs production-level testing to confirm fitment and electrical performance.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engine types are these plugs compatible with?\u003c\/h3\u003e\n\n\u003cp\u003eThese double iridium plugs cover many 3.5L and several 2.7L\/3.0L Ford and Lincoln engines from model years roughly 2010–2023. Compatibility includes common passenger, utility, and commercial vehicles where the OE references align.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFord: F-150 (2011–2021) 3.5L, Expedition (2015–2021) 3.5L, Explorer (2013–2020) 3.0L\/3.5L, Edge (2015–2020) 2.7L, Flex (2010–2019) 3.5L, Transit 150\/250\/350 (2015–2023) 3.5L, Taurus (2010–2019) 3.5L, Fusion (2017–2019) 2.7L, Police Interceptor Sedan\/Utility (2013–2019) 3.5L\u003c\/li\u003e\n  \u003cli\u003eLincoln: Navigator (2015–2019) 3.5L, MKS\/MKT (2010–2019) 3.5L, Continental\/Aviator\/MKZ\/Nautilus models with 2.7L–3.0L engines where OE numbers match\u003c\/li\u003e\n  \u003cli\u003eOE references: 94374, LTR6IX, 94372, LTR6GP8, 90495, LTR6BHX — verify against your vehicle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these double iridium plugs affect engine performance and reliability?\u003c\/h3\u003e\n\n\u003cp\u003eDual iridium electrodes provide a strong, focused spark while resisting erosion, which helps sustain consistent combustion and ignition timing. They don't guarantee power gains but aim to reduce misfires, rough idling, and uneven throttle response when installed correctly.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eImproved electrode life compared with standard nickel plugs\u003c\/li\u003e\n  \u003cli\u003eStable high-voltage output across RPM ranges to reduce misfires\u003c\/li\u003e\n  \u003cli\u003eDesigned to address common ignition symptoms like stalling and rough idle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before purchase and during installation?\u003c\/h3\u003e\n\n\u003cp\u003eAlways confirm fitment using a trusted fitment tool and compare the new plug to your old plug for thread length, reach, and electrode design. Incorrect thread size or heat range can damage the engine; use a torque wrench and follow your vehicle manual for installation specs.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eUse \"amazonconfirmedfit\" or vehicle OEM guides to confirm compatibility\u003c\/li\u003e\n  \u003cli\u003eMatch thread size, reach, and heat range of the original plug; keep heat range differences within one step if swapping\u003c\/li\u003e\n  \u003cli\u003eClean spark plug wells, apply anti-seize only if specified, and torque to factory spec\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat quality checks and standards back these plugs?\u003c\/h3\u003e\n\n\u003cp\u003eKacuYelin produces these spark plugs in a modernized facility following TS16949-capable processes and subjects parts to multi-stage testing to ensure fit and electrical stability. The manufacturer emphasizes R\u0026amp;D and quality control to reduce early failures and ensure consistent high-voltage performance.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eManufactured in facilities operating with automotive production standards\u003c\/li\u003e\n  \u003cli\u003eReference-matched OE part numbers for cross-compatibility checks\u003c\/li\u003e\n  \u003cli\u003eProduct testing targets ignition stability across engine speed ranges\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers, fleet managers, and DIY mechanics who own compatible Ford or Lincoln vehicles and want a long-lasting replacement spark plug set that emphasizes electrode longevity and ignition consistency. Ideal when OE reference numbers match your vehicle and you want a cost-effective, higher-durability option to replace worn or fouled plugs.\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 my 2015 F-150 3.5L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, this set of six matches many 2011–2021 F-150 3.5L applications when OE references align; verify with a fit tool before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install these myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, with the correct socket and torque wrench—clean wells, confirm thread length and torque to factory specs for safe installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KacuYelin","offers":[{"title":"Default Title","offer_id":48085900099742,"sku":"B0G1LPXP1B","price":47.73,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/kacuyelin-front-packaging-set-of-6.jpg?v=1785880094","url":"https:\/\/northtrailauto.ca\/products\/kacuyelin-double-iridium-spark-plugs-set-of-6-ford-lincoln-3-5l-compatible-oe-94374","provider":"North Trail Auto","version":"1.0","type":"link"}