SKU: 91635249133

NGK Single Iridium Spark Plug Box of 4 (LTR5IX-11)

$39.89 $44.32
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

NGK Single Iridium Spark Plug Box of 4 (LTR5IX-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
2017-2020 Buick Envision Base
2017-2020 Buick Envision Essence
2017-2020 Buick Envision Preferred
2019 Buick Envision Premium
2012-2016,2018-2019 Buick LaCrosse Base
2012 Buick LaCrosse Convenience
2010-2011 Buick LaCrosse CX
2011 Buick LaCrosse CXL
2018-2019 Buick LaCrosse Essence
2012-2016 Buick LaCrosse Leather
2018-2019 Buick LaCrosse Preferred
2012,2018-2019 Buick LaCrosse Premium
2004-2007 Buick Rainier CXL
2004-2005 Buick Rainier CXL Plus
2012-2017 Buick Regal Base
2011 Buick Regal CXL
2012-2013 Buick Regal GS
2012-2013,2015-2016 Buick Regal Premium
2012-2017 Buick Verano Base
2012-2016 Buick Verano Convenience
2012-2017 Buick Verano Leather
2013-2016 Buick Verano Premium
2016-2017 Buick Verano Sport Touring
2013 Buick Verano Turbo
2013-2016 Cadillac ATS Base
2013-2016 Cadillac ATS Luxury
2016-2019 Cadillac CTS V
2015-2020 Cadillac Escalade Base
2015-2020 Cadillac Escalade Luxury
2015-2020 Cadillac Escalade Platinum
2015-2016 Cadillac Escalade Premium
2017-2020 Cadillac Escalade Premium Luxury
2015-2020 Cadillac Escalade ESV Base
2015-2020 Cadillac Escalade ESV Luxury
2015-2020 Cadillac Escalade ESV Platinum
2015-2016 Cadillac Escalade ESV Premium
2017-2020 Cadillac Escalade ESV Premium Luxury
2019 Chevrolet Blazer Base
2019-2020 Chevrolet Blazer L
2020 Chevrolet Blazer LT
2020 Chevrolet Camaro LT
2016-2020 Chevrolet Camaro SS
2017-2020 Chevrolet Camaro ZL1
2012-2015 Chevrolet Captiva Sport LS
2013-2015 Chevrolet Captiva Sport LT
2013-2015 Chevrolet Captiva Sport LTZ
2002-2005 Chevrolet Cavalier Base
2002-2005 Chevrolet Cavalier LS
2002-2005 Chevrolet Cavalier LS Sport
2004-2005 Chevrolet Classic Base
2004 Chevrolet Classic LS
2005,2010 Chevrolet Cobalt Base
2005-2010 Chevrolet Cobalt LS
2005-2010 Chevrolet Cobalt LT
2006-2007 Chevrolet Cobalt LTZ
2008 Chevrolet Cobalt Sport
2006-2010 Chevrolet Cobalt SS
2004,2015-2020 Chevrolet Colorado Base
2004,2006-2008 Chevrolet Colorado LS
2006-2012,2015-2020 Chevrolet Colorado LT
2004-2005 Chevrolet Colorado Sport
2004-2005 Chevrolet Colorado Sport LS
2006-2012,2015-2020 Chevrolet Colorado WT
2004-2005,2015-2019 Chevrolet Colorado Z71
2004-2005 Chevrolet Colorado Z71 LS
2004-2005 Chevrolet Colorado Z85
2004-2005 Chevrolet Colorado Z85 LS
2017-2019 Chevrolet Corvette Grand Sport
2014-2019 Chevrolet Corvette Stingray
2015-2019 Chevrolet Corvette Z06
2015-2017 Chevrolet Equinox L
2010-2017 Chevrolet Equinox LS
2010-2017 Chevrolet Equinox LT
2010-2016 Chevrolet Equinox LTZ
2017 Chevrolet Equinox Premier
2018-2020 Chevrolet Express 2500 Base
2018-2020 Chevrolet Express 2500 LS
2018-2020 Chevrolet Express 2500 LT
2018-2020 Chevrolet Express 3500 Base
2018-2020 Chevrolet Express 3500 LS
2018-2020 Chevrolet Express 3500 LT
2006-2011 Chevrolet HHR LS
2007-2011 Chevrolet HHR LS Panel
2006-2011 Chevrolet HHR LT
2007-2010 Chevrolet HHR LT Panel
2008-2010 Chevrolet HHR SS
2009 Chevrolet HHR SS Panel
2014 Chevrolet Impala Eco
2014-2019 Chevrolet Impala LS
2014-2019 Chevrolet Impala LT
2014-2016 Chevrolet Impala LTZ
2004-2005 Chevrolet Malibu Base
2008 Chevrolet Malibu Classic LS
2013-2014 Chevrolet Malibu Eco
2008-2010 Chevrolet Malibu Hybrid
2006-2015 Chevrolet Malibu LS
2006-2015 Chevrolet Malibu LT
2008-2015 Chevrolet Malibu LTZ
2016 Chevrolet Malibu Limited LS
2016 Chevrolet Malibu Limited LT
2016 Chevrolet Malibu Limited LTZ
2016-2020 Chevrolet Silverado 1500 Custom
2014-2020 Chevrolet Silverado 1500 High Country
2015-2018 Chevrolet Silverado 1500 LS
2014-2020 Chevrolet Silverado 1500 LT
2014-2020 Chevrolet Silverado 1500 LTZ
2015-2020 Chevrolet Silverado 1500 SSV
2014-2020 Chevrolet Silverado 1500 WT
2019 Chevrolet Silverado 1500 LD Custom
2019 Chevrolet Silverado 1500 LD LT
2019 Chevrolet Silverado 1500 LD WT
2020 Chevrolet Silverado 2500 HD Custom
2020 Chevrolet Silverado 2500 HD High Country
2020 Chevrolet Silverado 2500 HD LT
2020 Chevrolet Silverado 2500 HD LTZ
2020 Chevrolet Silverado 2500 HD WT
2020 Chevrolet Silverado 3500 HD High Country
2020 Chevrolet Silverado 3500 HD LT
2020 Chevrolet Silverado 3500 HD LTZ
2020 Chevrolet Silverado 3500 HD WT
2015-2020 Chevrolet Suburban LS
2015-2020 Chevrolet Suburban LT
2015-2016 Chevrolet Suburban LTZ
2017-2020 Chevrolet Suburban Premier
2019 Chevrolet Suburban 3500 HD LS
2019 Chevrolet Suburban 3500 HD LT
2015-2020 Chevrolet Tahoe LS
2015-2020 Chevrolet Tahoe LT
2015-2016 Chevrolet Tahoe LTZ
2015-2020 Chevrolet Tahoe PPV
2017-2020 Chevrolet Tahoe Premier
2015-2020 Chevrolet Tahoe SSV
2008 Chevrolet Trailblazer Base
2002-2007 Chevrolet Trailblazer LS
2002-2009 Chevrolet Trailblazer LT
2002-2003 Chevrolet Trailblazer LTZ
2002-2004 Chevrolet Trailblazer North Face
2003-2006 Chevrolet Trailblazer EXT LS
2002-2006 Chevrolet Trailblazer EXT LT
2002-2004 Chevrolet Trailblazer EXT North Face
2017 Ford C-Max Energi SE
2013-2016 Ford C-Max Energi SEL
2017 Ford C-Max Energi Titanium
2013-2018 Ford C-Max Hybrid SE
2013-2016 Ford C-Max Hybrid SEL
2017-2018 Ford C-Max Hybrid Titanium
1997-1998 Ford Contour Base
1995-1998 Ford Contour GL
1995 Ford Contour GL Sport
1995-2000 Ford Contour LX
1995 Ford Contour LX Sport
1998-2000 Ford Contour SE
1996 Ford Contour Sport
2008-2011 Ford Edge Limited
2007-2011 Ford Edge SE
2007-2011 Ford Edge SEL
2007 Ford Edge SEL Plus
2009-2010 Ford Edge Sport
2009-2012 Ford Escape Hybrid
2004,2009-2012 Ford Escape Limited
2009-2012 Ford Escape Limited Hybrid
2013-2019 Ford Escape S
2015-2016 Ford Escape SE
2020 Ford Escape Titanium Hybrid
2001-2004,2009-2012 Ford Escape XLS
2001-2004,2009-2012 Ford Escape XLT
2000-2003 Ford Escort ZX2
1998-1999 Ford Escort ZX2 Cool Coupe
1998-1999 Ford Escort ZX2 Hot Coupe
1999-2000 Ford Escort ZX2 S/R
2009-2012 Ford Flex Limited
2009-2012 Ford Flex SE
2009-2012 Ford Flex SEL
2011-2012 Ford Flex Titanium
2000-2004 Ford Focus SE
2000 Ford Focus Sony Limited Edition
2002-2004 Ford Focus SVT
2000-2004 Ford Focus ZTS
2002-2004 Ford Focus ZTW
2000-2004 Ford Focus ZX3
2002-2004 Ford Focus ZX5
2017-2018 Ford Fusion Energi Platinum
2013-2018 Ford Fusion Energi SE
2013-2020 Ford Fusion Energi Titanium
2010-2012 Ford Fusion Hybrid
2017-2018 Ford Fusion Platinum Hybrid
2006-2020 Ford Fusion S
2014-2018 Ford Fusion S Hybrid
2006-2020 Ford Fusion SE
2013-2020 Ford Fusion SE Hybrid
2006-2012,2019 Ford Fusion SEL
2010-2012 Ford Fusion Sport
2013-2020 Ford Fusion Titanium Hybrid
2019-2020 Ford Police Responder Hybrid Base
2019-2020 Ford SSV Plug-In Hybrid Base
2008-2012 Ford Taurus Limited
2009-2012 Ford Taurus SE
2008-2012 Ford Taurus SEL
2008-2009 Ford Taurus X Eddie Bauer
2008-2009 Ford Taurus X Limited
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
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SKU: 91635249133

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4.8 ★★★★★
Based on 15 reviews
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Product Reviews
S
Verified Purchase
Steve M Vedder
Birmingham, US
★★★★★ 5
Great Product
Size: 6 Pairs / 12 pcs
These banana plugs have worked perfectly, no matter what gauge I have run in them, they work great. Easy assembly and great quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
P
Verified Purchase
PowerTripp
Louisville, US
★★★★★ 4
The most legit banana plugs I could find on Amazon
Size: 6 Pairs / 12 pcs, Size: 6 Pairs / 12 pcs
NEW PREFACE:: I am kind of glad I first bought the horribly magnetic, horribly made and GOLD PAINTED Sewell crimp on plugs (some reviewers say that Sewell are better and easier to use than the FosPower, which is true in design, but in quality of materials FosPower beats them hands down!!) ... Changing from those to these FosPower plugs plus the Monoprice 90° plugs, I am flabbergasted at the difference they make in sound quality. I have heard people say that they can hear the difference and even as an audiophile I was skeptical..... but my skepticism has been completely erased by what I am hearing with my own ears. I waited a few days to make sure I wasn’t just tripping before updating this review 🤣....but it has become clear to me how much a difference plugs made from the right materials actually make!!! I am 100% serious that the bass coming out of my Polk Signature Series tower speakers has at least doubled at the same volume. I can also now turn the volume up Way past my max volume before, without any distortion and much more clarity and less harsh highs. Everything just sounds warmer in general now which is amazing!!!! This is dangerous info for me... because now I’m thinking about making some really nice custom wires to see how much of a difference that makes 🙄🙄🤣 OK onto the review of the actual plugs here~~ These seem like decent connectors. I can’t tell if they are brass or copper, but they only have a slight hint of a magnetic property when testing them with a very powerful magnet. I was easily able to fit x2 - 14ga wires into it for bi-wiring purposes, including screwing on the collar. (As seen in my example pic) The gold plating on the tips seems legit and not painted like some of the plugs from Sewell... I have tested and tried quite a few plugs from Amazon and most seem to be crap. These however hold up better than most! These and the Monoprice 90° banana plugs with the black and red rubber sleeves. The latter are gold plated copper and have zero magnetic properties. (if you need 90° banana plugs) UPDATE: still the best plugs I have found, but upon full install found two issues. One is a defect where a set of the plug threads for the barrel cover body weren’t cut right. The body’s do not tighten and stay loose because of that. Obvious issue for vibration with metal on metal... The other issue is that even though these say they can fit different gauge wires, they seem to be geared more towards 12 or 10 gauge. I am using semi solid strand 14 gauge and find that unless I fold the wire over to make it double thick, the bolts use up all the thread and seem to become kind of loose inside the body. They won’t fully seat and keep spinning no matter how much you tighten. They seem to stay secure still but I just wonder about longevity over time with vibrations. So I just doubled up the wire and they seated fine! Not the worst issue in the world, but just kind of a pain since you have to strip the wire longer than you normally would so you can fold it over. ANOTHER UPDATE: I had to remove these plugs from the wire to connect them to a crappy spring terminal amp while my better amp was in the shop. The issue I wrote about with the set screws "bottoming out" on smaller gauge wire became a more pronounced issue! I could not unscrew the set screws anymore and just had to cut the wires... So that means I will need to purchase more of these to replace the ones I cannot get wire back into. Not the best design, but still one of the best plugs I have found on Amazon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2021
R
Verified Purchase
Russell B
Lexington, US
★★★★★ 5
Sturdy. Tight fit. No wobble
Size: 2 Pairs / 4 pcs
These are the best ones I’ve found. This order will connect one wire. Luckily that’s what I needed. If you’re doing more than one wire…
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
E
Verified Purchase
Ed Train
Massapequa, US
★★★★★ 5
Superior Design!
Size: 6 Pairs / 12 pcs
Delivery was lightning fast. I tried a pack of two pairs of these banana jacks as a sample to see if these would meet my needs. The design of these plugs is superior. The design was exactly what I wanted because the speaker wire is secured with TWO set screws. Then I ordered an additional six pairs of plugs to hook up my subwoofer to my amp and speakers. (I feed the audio output from the amp to the sub. The sub has a crossover that keeps the low frequencies and sends the mid and treble frequencies to my bookshelf speakers.) I love the security of two set screws on each plug and love the barrel that screws on AFTER the wire is secured by the set screws. Most banana plugs have a hole through the shaft of the plug that receives the stripped wire. Then the barrel cover is screwed down to secure the wire in the plug. This design compresses the speaker wire but eventually the cap loses it grip and allows the connection between the wire and the plug to become loose. Then the transfer of the audio signal becomes poor and the speakers sound bad. Every month or two I needed to check all the banana plugs and re-tighten many of them for the best performance. The two set screws eliminate this problem. The set screws are quite small and take a little extra care in installation. You will need a small flat blade screwdriver to tighten them. I used the 1/8" flat blade driver from a set of jewelers screwdrivers. These well made plugs are a bit pricier that many of the banana plugs available but certainly not the priciest plugs available. For me, the slightly higher price was more than offset by the security of the wire within the plug. I'm not thrilled with the extra tight fit of the tip on the plugs into the jacks. It took a lot of effort to insert the in the jack. Actually I "greased" the pins (very sparingly) with with non-corrosion, conductive paste (Ox-Gard, No-Corrode, etc. Do NOT use any other grease.) Next time I'll use pliers to compress the pin. My only quibbles are that the spring pins that go into the jack are very tight and that the plugs are only sold in quantities of two pairs or 12 pairs. I recommend these banana plugs for all who are using the banana plugs and jacks for hooking up your speakers. It's a very convenient way of connecting speakers if your speakers and amplifier have the banana jack as part of the binding post. Further, it's much safer to use banana plugs since the possibility of shorting your amplifier with a stray strand of wire is practically zero. Easy Five Stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2018
V
Verified Purchase
V88
Belleville, US
★★★★★ 5
Top banana
Size: 5 Pairs / 10 pcs
Theses banana plugs are hight quality non magnetic. Banana plugs easy to usexand very high quality sound different because of the better connection and quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026

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