• Photo - Primary
  • Photo - Primary
  • Photo - out of package
  • Photo - out of package

NGK IX Iridium Spark Plug Box of 4 (TR6IX)

106 in stock
$90.60
$90.60
Shipping calculated at checkout.
  • Fully secure checkout
  • Trusted by thousands
  • Rated and reviewed

Question about this product?

We're happy to help.

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
NGK IX Iridium Spark Plug Box of 4 (TR6IX)

$90.60

  • Fast shipping

    Ordered a product and it arrived the next day. Super impressed with the speed and the careful packaging.

    Jordan Smith
    Seattle, Washington

  • Excellent service

    Customer support was helpful; they resolved my issue in minutes. Really appreciated the follow-up email to ensure satisfaction.

    Taylor Christos
    Austin, Texas

  • Great selection

    Wide variety of products across the range. Found everything I needed in one place, very convenient.

    Alex Williams
    London, England

  • Top quality

    The product I bought exceeded my expectations. Top-notch quality, thoughtful design, and it came beautifully packaged.

    Sam Davis
    San Francisco, California

  • Reliable store

    Have ordered multiple times, always received exactly what was described. Products are genuine and fully functional.

    Casey Brown
    Denver, Colorado

  • User-friendly website

    Easy to navigate and make purchases. A hassle-free shopping experience with clear descriptions and transparent pricing.

    Riley Wilson
    Boston, Massachusetts

  • Smooth checkout

    Checkout was quick and straightforward. My order confirmation came through instantly, and everything arrived exactly as expected.

    Morgan Lee
    Portland, Oregon

  • Great value

    Really pleased with the quality for the price. The product felt premium, worked perfectly out of the box, and was well packaged.

    Jamie Carter
    Manchester, England

Can I return a part after it has been installed?

Generally, installed or used performance parts cannot be returned. We strongly recommend verifying vehicle fitment and inspecting the product before installation.

Can I cancel my order after it has been placed?

We begin processing orders as quickly as possible. If you need to cancel, contact us immediately. Once an order has entered fulfillment, been submitted to a supplier, or shipped, cancellation may no longer be possible.

Will this part fit my vehicle?

Fitment varies by year, make, model, trim, engine, and drivetrain. Use our vehicle fitment information to confirm compatibility. If you're unsure, contact us with your VIN and we'll help verify fitment before you order.

How do I know if this is the right upgrade for my build?

Not every upgrade makes sense for every vehicle or build. Tell us your vehicle, current modifications, and performance goals, and we'll help determine whether this product is a good fit.

Are the products you sell authentic?

Yes. We source products through established manufacturers and authorized distribution channels. We do not sell counterfeit or imitation performance parts.

Is professional installation recommended?

For most performance components, yes. Proper installation is critical for fitment, reliability, and performance. Some products may also require specialized tools, programming, tuning, or additional supporting modifications.