{"product_id":"ngk-6619-iridium-ix-spark-plugs-lfr6aix-11-pack-of-6","title":"NGK 6619 Iridium IX Spark Plugs LFR6AIX-11 (Pack of 6)","description":"\u003cp\u003e\u003cstrong\u003eGenuine NGK Iridium IX Spark Plug Set – Pack of 6 (Stock No. 6619 \/ Part # LFR6AIX-11)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEnhance your engine’s throttle response, ignition stability, and overall power output with a factory-fresh 6-pack of genuine NGK Iridium IX spark plugs. Featuring a 0.6mm fine-wire iridium center electrode and a tapered ground electrode, the NGK LFR6AIX-11 delivers extreme ignitability, superior anti-fouling resistance, and maximum spark energy across all RPM ranges.\u003c\/p\u003e\n\u003cp\u003eEngineered specifically for performance enthusiasts and daily drivers alike, this set is ideal for routine ignition maintenance or resolving engine misfires, rough idling, and poor fuel efficiency in V6 engines.\u003c\/p\u003e\n\u003ch3\u003e Key Features \u0026amp; Benefits:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.6mm Fine-Wire Iridium Tip:\u003c\/strong\u003e Requires lower voltage to spark, ensuring rapid flame propagation, crisp throttle response, and smooth idle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapered Cut Ground Electrode:\u003c\/strong\u003e Minimizes electrical quenching for improved flame expansion and better fuel combustion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme Durability \u0026amp; Heat Resistance:\u003c\/strong\u003e High-melting-point iridium alloy withstands severe thermal stress and electrical erosion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrivalent Metal Plating:\u003c\/strong\u003e Superior anti-corrosion and anti-seizing properties eliminate the need for anti-seize compound during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermo-Edge Technology:\u003c\/strong\u003e Microscopic spark gaps clear carbon deposits as they form for built-in anti-fouling protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Cross-Reference \u0026amp; Interchange Part Numbers:\u003c\/h3\u003e\n\u003cp\u003eReplaces and interchanges with the following OEM and manufacturer part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNGK Part \/ Stock Numbers:\u003c\/strong\u003e LFR6AIX-11, LFR6AIX11, 6619\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToyota \/ Lexus OEM:\u003c\/strong\u003e 90919-01247, 90919-01259, FK20HR11, SK20HR11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNissan \/ Infiniti OEM:\u003c\/strong\u003e 22401-EW61C, 22401-5M016, PLFR6A-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDenso \/ Aftermarket:\u003c\/strong\u003e IKH20, IKH20TT, 5344, 3426, VKH20\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Product Specifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e NGK Spark Plugs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Iridium IX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock Number:\u003c\/strong\u003e 6619\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number \/ Shell ID:\u003c\/strong\u003e LFR6AIX-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Included:\u003c\/strong\u003e Pack of 6 Spark Plugs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Electrode Material:\u003c\/strong\u003e Fine-Wire Iridium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Electrode Cut:\u003c\/strong\u003e Tapered Cut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 14mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach:\u003c\/strong\u003e 26.5mm (1.04\") — Long Reach\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHex Size:\u003c\/strong\u003e 5\/8\" (16mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Pre-Gap:\u003c\/strong\u003e 0.044\" (1.1mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Range:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand New In Original Packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Vehicle Compatibility:\u003c\/h3\u003e\n\u003cp\u003eFits a wide range of V6 and 6-cylinder Toyota, Lexus, Nissan, Infiniti, and Subaru models requiring long-reach 14mm spark plugs. \u003cem\u003ePlease verify fitment using your owner's manual or VIN before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToyota 4Runner:\u003c\/strong\u003e 2003 – 2015 (4.0L V6 1GR-FE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToyota Tacoma:\u003c\/strong\u003e 2005 – 2015 (4.0L V6 1GR-FE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToyota Tundra:\u003c\/strong\u003e 2005 – 2014 (4.0L V6 1GR-FE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToyota FJ Cruiser:\u003c\/strong\u003e 2007 – 2014 (4.0L V6 1GR-FE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLexus RX350 \/ ES350:\u003c\/strong\u003e 2007 – 2015 (3.5L V6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNissan Frontier \/ Xterra \/ Pathfinder:\u003c\/strong\u003e 2005 – 2019 (4.0L V6 VQ40DE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInfiniti G35 \/ FX35:\u003c\/strong\u003e 2003 – 2008 (3.5L V6 VQ35DE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Shipping \u0026amp; Delivery Guarantee:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast 1-2 Day Processing:\u003c\/strong\u003e Orders process and ship within 1-2 business day directly from our warehouse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective Packaging:\u003c\/strong\u003e Individually boxed and cushioned so electrode gaps stay properly set during transit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLive Tracking:\u003c\/strong\u003e Real-time tracking link emailed as soon as your package is dispatched to the carrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Genuine OEM Guarantee:\u003c\/strong\u003e Authentic NGK products sourced directly—no counterfeit or knockoff components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Shop With Valtrix Powertrain?\u003c\/strong\u003e\u003cbr\u003eAt Valtrix Powertrain, we supply genuine OEM and performance ignition components to keep your engine firing at full potential. Enjoy fast dispatch, protective shipping, and reliable customer support on every order.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":52825904808247,"sku":null,"price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3428\/7927\/files\/NGK-LFR6AIX-11-6619-Iridium-IX-Spark-Plugs.jpg?v=1786488844","url":"https:\/\/valtrixpowertrain.com\/products\/ngk-6619-iridium-ix-spark-plugs-lfr6aix-11-pack-of-6","provider":"Valtrix Powertrain","version":"1.0","type":"link"}