# NGK Iridium Spark Plug Box of 4 (LFR6AIX-11) NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug. - RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs - Trivalent metal plating for superior anti-corrosion and anti-seizing properties - Outstanding acceleration, high fuel efficiency and durability - Fine iridium tip ensures durable and consistent spark This Part Fits: Year Make Model Submodel 2013-2014 Acura ILX Hybrid 2008-2009 BMW 128i Base 2006 BMW 325i Base 2006 BMW 325xi Base 2007-2009 BMW 328i Base 2009 BMW 328i xDrive Base 2007-2008 BMW 328xi Base 2006 BMW 330i Base 2006 BMW 330xi Base 2006-2007 BMW 525i Base 2006-2007 BMW 525xi Base 2008-2010 BMW 528i Base 2009-2010 BMW 528i xDrive Base 2008 BMW 528xi Base 2006-2007 BMW 530i Base 2006-2007 BMW 530xi Base 2007-2008 BMW X3 3.0si 2009 BMW X3 xDrive30i 2007-2008 BMW X5 3.0si 2009 BMW X5 xDrive30i 2006-2008 BMW Z4 Coupe 3.0si 2006-2008 BMW Z4 Roadster 3.0i 2006-2008 BMW Z4 Roadster 3.0si 2009 BMW Z4 sDrive30i 2006-2015 Honda Civic Hybrid 2009-2015 Honda Civic Hybrid-L 2011-2014 Honda Insight Base 2010-2014 Honda Insight EX 2010-2014 Honda Insight LX 2007-2018 Lexus ES350 Base 2010-2020 Lexus GX460 Base 2014-2020 Lexus GX460 Luxury 2010-2020 Lexus GX460 Premium 2008-2011,2013-2020 Lexus LX570 Base 2007-2015 Lexus RX350 Base 2013-2015 Lexus RX350 F Sport 2010-2015 Lexus RX450h Base 2006-2009 Saab 9-3 Aero 2008-2009 Saab 9-3 Aero XWD 2008 Saab 9-3 Turbo X 2010-2013 Subaru Legacy 3.6R 2010-2019 Subaru Legacy 3.6R Limited 2010-2012 Subaru Legacy 3.6R Premium 2010-2013 Subaru Outback 3.6R 2010-2019 Subaru Outback 3.6R Limited 2010-2012 Subaru Outback 3.6R Premium 2017-2019 Subaru Outback 3.6R Touring 2002-2004 Subaru Outback H6 2004 Subaru Outback H6 35th Anniversary Edition 2004 Subaru Outback H6 VDC 2001-2004 Subaru Outback L.L. Bean 2001-2003 Subaru Outback VDC 2010-2014 Subaru Tribeca Limited 2010-2012 Subaru Tribeca Premium 2010-2012 Subaru Tribeca Touring 2009-2013 Suzuki Grand Vitara Base 2010-2013 Suzuki Grand Vitara Limited 2009 Suzuki Grand Vitara Luxury 2009-2013 Suzuki Grand Vitara Premium 2012 Suzuki Grand Vitara Ultimate Adventure Edition 2009-2010 Suzuki Grand Vitara XSport 2013 Suzuki Kizashi Base 2010,2013 Suzuki Kizashi GTS 2010-2012 Suzuki Kizashi S 2010-2013 Suzuki Kizashi SE 2010,2013 Suzuki Kizashi SLS 2011-2012 Suzuki Kizashi Sport GTS 2011-2012 Suzuki Kizashi Sport SLS 2003-2013 Toyota 4Runner Limited 2003-2009 Toyota 4Runner Sport 2003-2013 Toyota 4Runner SR5 2010-2013 Toyota 4Runner Trail 2011-2012 Toyota Avalon Base 2005-2018 Toyota Avalon Limited 2005-2008,2016-2018 Toyota Avalon Touring 2005-2010 Toyota Avalon XL 2013-2018 Toyota Avalon XLE 2016-2018 Toyota Avalon XLE Plus 2013-2018 Toyota Avalon XLE Premium 2013-2015 Toyota Avalon XLE Touring 2015 Toyota Avalon XLE Touring SE 2005-2011 Toyota Avalon XLS 2007-2011 Toyota Camry LE 2007-2014 Toyota Camry SE 2007-2017 Toyota Camry XLE 2015-2017 Toyota Camry XSE 2007-2013 Toyota FJ Cruiser Base 2008 Toyota FJ Cruiser Trail Teams Special Edition 2007 Toyota FJ Cruiser TRD Special Edition 2008-2013 Toyota Highlander Base 2011-2013 Toyota Highlander Hybrid 2011-2016 Toyota Highlander Hybrid Limited 2014-2016 Toyota Highlander LE 2014-2016 Toyota Highlander LE Plus 2008-2016 Toyota Highlander Limited 2013 Toyota Highlander Plus 2010-2013 Toyota Highlander SE 2008-2010 Toyota Highlander Sport 2014-2016 Toyota Highlander XLE 2008-2011,2013-2020 Toyota Land Cruiser Base 2006-2012 Toyota RAV4 Base 2006-2012 Toyota RAV4 Limited 2006-2012 Toyota RAV4 Sport 2008-2020 Toyota Sequoia Limited 2008-2020 Toyota Sequoia Platinum 2008-2020 Toyota Sequoia SR5 2020 Toyota Sequoia TRD Pro 2018-2020 Toyota Sequoia TRD Sport 2011-2013 Toyota Sienna Base 2007-2010 Toyota Sienna CE 2013-2016 Toyota Sienna L 2007-2016 Toyota Sienna LE 2007-2008,2011-2016 Toyota Sienna Limited 2011-2016 Toyota Sienna SE 2007-2016 Toyota Sienna XLE 2005-2015 Toyota Tacoma Base 2005-2015 Toyota Tacoma Pre Runner 2015 Toyota Tacoma TRD Pro 2005-2013 Toyota Tacoma X-Runner 2014-2020 Toyota Tundra 1794 Edition 2005-2013 Toyota Tundra Base 2007-2020 Toyota Tundra Limited 2013-2020 Toyota Tundra Platinum 2014-2020 Toyota Tundra SR 2005-2011,2014-2020 Toyota Tundra SR5 2015-2017,2019-2020 Toyota Tundra TRD Pro 2009-2011 Toyota Venza Base 2012-2014 Toyota Venza LE 2012-2015 Toyota Venza Limited 2012-2015 Toyota Venza XLE 2006-2010 Volvo S40 2.4i 2004-2005 Volvo S40 i 2012 Volvo S60 T5 2013-2014 Volvo S60 T6 2015-2016 Volvo S60 T6 Polestar 2013-2016 Volvo S60 T6 R-Design 2015-2016 Volvo S60 T6 R-Design Platinum 2012-2014 Volvo S80 3.2 2012-2015 Volvo S80 T6 2006-2010 Volvo V50 2.4i 2005 Volvo V50 i 2015-2016 Volvo V60 T6 Polestar 2015-2016 Volvo V60 T6 R-Design 2015-2016 Volvo V60 T6 R-Design Platinum 2012-2015 Volvo XC60 3.2 2012-2016 Volvo XC60 T6 2015 Volvo XC60 T6 Ocean Race 2016 Volvo XC60 T6 Platinum 2016 Volvo XC60 T6 Premier 2012-2016 Volvo XC60 T6 R-Design 2016 Volvo XC60 T6 R-Design Platinum 2012-2015 Volvo XC70 3.2 2012-2015 Volvo XC70 T6 2012-2014 Volvo XC90 3.2 2013-2014 Volvo XC90 3.2 R-Design ## Details - **Price:** 74.61 CAD - **Vendor:** NGK - **Type:** Spark Plugs ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 74.61 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - out of package - Photo - out of package --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/ngk-iridium-spark-plug-box-of-4-lfr6aix-11) > Updated: 2026-06-27