# NGK IX Iridium Spark Plug Box of 4 (TR6IX) 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 2000 Aston Martin DB7 Vantage 2000 Aston Martin DB7 Vantage Volante 2009-2015 Cadillac CTS V 2014-2015 Chevrolet Camaro Z/28 2012-2015 Chevrolet Camaro ZL1 2013 Chevrolet Corvette 427 2008 Chevrolet Corvette 427 Limited Edition Z06 2006-2013 Chevrolet Corvette Z06 2011 Chevrolet Corvette Z06 Carbon 2009-2013 Chevrolet Corvette ZR1 1996-2008,2010-2011 Ford Crown Victoria Base 2006-2009 Ford Crown Victoria Fleet 2002-2009 Ford Crown Victoria LWB 1997-2011 Ford Crown Victoria LX 2004 Ford Crown Victoria LX Sport 1996-2005,2008-2011 Ford Crown Victoria Police Interceptor 1996-2005 Ford Crown Victoria S 2005 Ford Crown Victoria Special Edition 2002-2003 Ford F-150 Harley-Davidson Edition 1999-2003 Ford F-150 Lightning 2004 Ford F-150 Heritage SVT Lightning 2005-2006 Ford GT Base 2007-2014 Ford Mustang Shelby GT500 2008-2009 Ford Mustang Shelby GT500KR 2001-2004 Ford Ranger Edge 2004 Ford Ranger Tremor 1999-2004 Ford Ranger XL 1999-2004 Ford Ranger XLT 1999-2004 Ford Taurus LX 1999-2006 Ford Taurus SE 2000,2003 Ford Taurus SE Comfort 2004-2006 Ford Taurus SEL 2000-2004 Ford Taurus SES 2000 Ford Taurus SVG 2006-2007 Lincoln Town Car Designer Series 2006-2010 Lincoln Town Car Executive 2006-2011 Lincoln Town Car Executive L 2006 Lincoln Town Car Protection Series 2006-2007 Lincoln Town Car Signature 2006-2011 Lincoln Town Car Signature L 2006-2011 Lincoln Town Car Signature Limited 2001 Mazda B3000 DS 1999-2001 Mazda B3000 SE 2000 Mazda B3000 SX 1999-2000 Mazda B3000 Troy Lee 2006-2008 Mercury Grand Marquis GS 2006-2011 Mercury Grand Marquis LS 2003-2005 Mercury Sable GS 2001 Mercury Sable LS 1989 Pontiac Firebird Trans Am 1989 Pontiac Firebird Trans Am GTA SE 1990 Pontiac Grand Prix Mclaren 1989 Pontiac Grand Prix SE 1990 Pontiac Grand Prix STE 1968-1971 Rover 2000 Base 1968-1971 Rover 2000 TC ## 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-ix-iridium-spark-plug-box-of-4-tr6ix) > Updated: 2026-06-27