Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
NGK Iridium IX Spark Plug Box of 4 (LZTR4AIX-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
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 |
|---|---|---|---|
| 2005-2008 | Chrysler | 300 | C |
| 2007-2008 | Chrysler | Aspen | Limited |
| 2001-2009 | Chrysler | PT Cruiser | Base |
| 2010 | Chrysler | PT Cruiser | Classic |
| 2010 | Chrysler | PT Cruiser | Couture Edition |
| 2002 | Chrysler | PT Cruiser | Dream |
| 2001-2007 | Chrysler | PT Cruiser | Limited |
| 2008-2009 | Chrysler | PT Cruiser | LX |
| 2006 | Chrysler | PT Cruiser | Street Cruiser |
| 2001-2009 | Chrysler | PT Cruiser | Touring |
| 2004-2006 | Chrysler | Sebring | Base |
| 2001-2004 | Chrysler | Sebring | LX |
| 2001-2002 | Chrysler | Voyager | Base |
| 2002 | Chrysler | Voyager | Ec |
| 2002-2003 | Chrysler | Voyager | LX |
| 2002 | Dodge | Caravan | Ec |
| 2001-2007 | Dodge | Caravan | SE |
| 2006 | Dodge | Charger | Daytona R/T |
| 2006-2008 | Dodge | Charger | R/T |
| 2008 | Dodge | Charger | SE |
| 2006-2008 | Dodge | Durango | Adventurer |
| 2004-2008 | Dodge | Durango | Limited |
| 2004-2008 | Dodge | Durango | SLT |
| 2005 | Dodge | Durango | ST |
| 2007 | Dodge | Durango | SXT |
| 2005-2008 | Dodge | Magnum | R/T |
| 2003-2008 | Dodge | Ram 1500 | Laramie |
| 2003-2008 | Dodge | Ram 1500 | SLT |
| 2006-2007 | Dodge | Ram 1500 | Sport |
| 2003-2008 | Dodge | Ram 1500 | ST |
| 2008 | Dodge | Ram 1500 | SXT |
| 2006-2007 | Dodge | Ram 1500 | TRX4 |
| 2003,2005-2008 | Dodge | Ram 2500 | Laramie |
| 2006-2008 | Dodge | Ram 2500 | Power Wagon |
| 2003-2008 | Dodge | Ram 2500 | SLT |
| 2006-2007 | Dodge | Ram 2500 | Sport |
| 2003-2008 | Dodge | Ram 2500 | ST |
| 2008 | Dodge | Ram 2500 | SXT |
| 2006-2007 | Dodge | Ram 2500 | TRX4 |
| 2003-2008 | Dodge | Ram 3500 | Laramie |
| 2003-2008 | Dodge | Ram 3500 | SLT |
| 2006-2007 | Dodge | Ram 3500 | Sport |
| 2003-2008 | Dodge | Ram 3500 | ST |
| 2008 | Dodge | Ram 3500 | SXT |
| 2002-2003 | Dodge | Stratus | ES |
| 2001-2004 | Dodge | Stratus | SE |
| 2002 | Dodge | Stratus | SE Plus |
| 2003-2006 | Dodge | Stratus | SXT |
| 2006-2008 | Jeep | Commander | Limited |
| 2007-2008 | Jeep | Commander | Overland |
| 2005-2008 | Jeep | Grand Cherokee | Limited |
| 2006-2008 | Jeep | Grand Cherokee | Overland |
| 2002-2005 | Jeep | Liberty | Sport |
| 2003-2006 | Jeep | Wrangler | SE |
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
4.7 ★★★★★
Based on 656 reviews
Sort
Product Reviews
★★★★★ 5
Perfect for young pups who get bored easily!
Color: Bacon, Color: Bacon
Our pup recently turned 1 and gets bored very easily, so she’s always looking for something new to chew or play with. We got her this little alligator toy and she is OBSESSED with it! She carries it everywhere and plays with it constantly. I’m honestly surprised by how durable it’s been considering how much use it gets. If you want to help save your furniture and household items from becoming chew toys, do yourself a favor and grab this for your pup!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 4
Extremely durable but too large for our Aussie
Color: Bacon -Blue
This toy is very solid and seems like it would hold up well for aggressive chewers, but it ended up being too large and heavy for our Australian Shepherd. He had trouble comfortably holding it in his mouth and wasn’t very interested in chewing on it because of the size and weight.
The quality itself seems good, but I would recommend it more for larger dogs with bigger jaws that enjoy heavier chew toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Indestructible toy
Color: Bacon
This is a great toy. I have a husky pit bull mix puppy that can chew anything. I swear that dog can chew the varnish off a furniture. He cannot chew this up.I highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 3
Indestructible?
Color: Bacon, Color: Bacon
This is after 1 week of arrgressive chewing. Not sure if it's safe for my dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
★★★★★ 4
Beloved But Beware Microplastic Chip-Offs
Color: Bacon
My doodle adores this thing and gnaws on it constantly. He has not been able to harm it, which is great. That’s the best part. Things to be aware of:
1. This is mostly molded plastic; it is a bit heavy and very hard. My dog tosses it into the air and if it lands on him, it HURTS. A lot.
2. While it’s sturdy, sharp teeth eventually gnaw pieces and little shavings off the toy. These are microplastics and could be harmful if your dog swallows them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026