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Ships within 48 hours · Estimated delivery Oct 10 - Oct 15
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Description
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
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 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
The most durable and fun dog toy of all
Size: Medium Set of 6
Most durable and fun toy of all. The only thing that I have found that can destroy these balls is a lawnmower. Probably good for keeping teeth clean too.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Dog approved
Size: 3.5" (Medium/Large Dog), Color: Set of 6
My 60lb 11mo puppy loves these balls! They do get a little softer the more she plays with them but they are light and squeezy enough for fun retrieve, catch, bounce and training. AND does not break things in the house since they are fairly squeezable. The sqeeky can be a little loud but it also helps get her attention and she is so excited to play with multiple ones. I'm also suspecting the plastic spikes may even help clean her teeth. They are the perfect size for a German shepherd. This multi-pack is great to have to use some outdoor, indoor, and i replace old ones after my pup gets them too dirty to wash.
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Reviewed in the United States on November 30, 2025
★★★★★ 5
The dogs favorite toys!
Size: 3.5" (Medium/Large Dog), Color: Set of 6
I have 3 German Shepherds. These balls are their favorite! They live to have me throw them and they love to chase them. They are outside toys, but they always try and sneak them in. I have purchased these quite a few times because they love them. The balls squeak and are soft enough for me to squeeze them, but tough enough that they don’t go right through them. When the squeaker dies, they still love to play with the balls until their squeezing finally breaks the ball. Remember they are outside balls, so they are in all kinds of weather. We do have other balls, but they don’t play them.
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Reviewed in the United States on July 15, 2025
★★★★★ 5
They bounce and float
Size: 4.5"(Large Dog), Color: Set of 6
Perfect size for my 65 pound doggie. They bounce just right, float, and they have a good squeak. The spikes are larger than those from other brands, not an issue for me, but the only sign difference I could see.
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Spiked Ball = No Slime!! ☺️
Size: 2.5" (Small Dog), Color: Blue+Orange+Green
You will lose these balls before your dog could destroy them. Very sturdy for the price. The spikey ball style means your hands won’t get slimed when your dog drools on the ball playing fetch. Great fun colors.
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Reviewed in the United States on March 28, 2026