NGK Iridium IX Spark Plugs

$10.99 - $19.99
4.50 out of 5 stars
Fitment Expert:
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NGK Iridium IX Spark Plugs
NGK Iridium IX Spark Plugs
  • Description
  • Reviews (13)
  • Q&A (7)
  • Fitment

The Spark Plug Serious Enthusiasts Rely On.

Designed specifically for the performance enthusiast. Iridium IX® offers extreme ignitability, improved throttle response and superior anti-fouling.

  • Fine Iridium tip ensures high durability and a consistently stable spark.
  • Iridium alloy has extremely high melting point, perfect for today's high-tech, high-performance engines.
  • Iridium alloy is extremely durable to heat, corrosion and electrical wear.
  • Trivalent metal plating - superior anti-corrosion and anti-seizing properties.
  • Outstanding acceleration, high fuel efficiency and durability.
  • Ultimate design, technology and performance.
  • 0.6 mm laser welded iridium tip.
  • Tapered ground electrode to minimize "Quenching Effect".
4.5 out of 5 stars (13)
4.5 out of 5 stars
5 star   11
4 star 0
3 star 0
2 star   1
1 star   1
See Terms and Conditions
1-10 of 13
Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Top 1000 Contributor Verified Purchaser
Location: Hillsboro, OR, USA
Quixotic1
High Quality Replacement and OEM Spark Plugs

Yes, these are the same model as the spark plugs which where installed on my bike as new. Thus, NGK spark plugs were a simple and safe choice for my application. Glad that was the case as these were perfect - tiny adjustments, easy install, and perfect performance. In fact, when I pulled the stock units from the bike, they cleaned up almost like new, so calling the NGK plugs durable is not a stretch. In fact, for any motorcycle or auto or truck, I would highly recommend NGK's spark plugs - they are used as stock plugs in a huge number of vehicles for good reason - they are well-built and very reliable.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Location: Fort Benning, GA 31905, USA
soldier
Wow

huge difference

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: California, USA
Trini
NGK PERFORMANCE

NGK Irridium spark plugs are made to provide peak performance. Owner of 2003 GSXR1K, I can feel the power band in the acceleration smooth firing. Great sound from the YOSHIMUR exhaust system. Excellent choice for an aftermarket plug.

Overall 1 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Rommy
Never ever use these again.

Replaced plugs and the broke off in my head probably about 8000 miles. Looks like this is a common problem and it is very expensive to fix. In my case new head and which requires dropping the engine. NGK lost my business with that one.

Overall 2 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Location: Largo, FL
andro727
WOWWW

NGK cr9e plugs. 14,899 miles and I am doing a change of plugs. the threads broke off from the ceramic body!! REALLY! now I have to tear apart the entire top end just to get it out with a screw extractor. If I went to a dealership it would have cost me over $500 for this...THANKS NGK.

NGK Iridium IX Spark Plugs
Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Atglen, PA
Upyess
Well worth it!!!!!

Excellent product. Excellent price. Highly recommended.

Overall 5 out of 5 stars
Ease of Installation
Performance
Power
Verified Purchaser
Location: Groton, CT
squid769
Great product

I put these in a 2007 GSX-R 750 you have to take the cap off the threads to fit on my bike but they didn't need to be gapped. I installed these and a K&N and you can tell the difference.

Overall 5 out of 5 stars
Location: Worcester,MA
NGK IRIDIUM IX SPARK PLUGS ARE THE BEST!

I felt the Horsepower Gain and Throttle Response instantly with my new NGK IRIDIUM IX SPARK PLUGS! No Gapping Required for an easy installation! The BEST PRICES are at MOTOSPORT.COM!

Overall 5 out of 5 stars
Location: grafton ohio
supermoto
A1

Great product !!!!!! plugs are top of the line best u can get and bike runs a1

Overall 5 out of 5 stars
Top 1000 Contributor
Location: Dallas, TX
ZXRider
Awesome Plugs!!

These are the best plugs out...bar none!! Motosport has them for the BEST PRICE, hands down.

1-10 of 13
Total Questions (7)
Questions with answers:
  7
Questions without answers:
0
train Location: raleigh n.c
Vercetti Location: Georgetown, KY
1-7 of 7
Larry2step Over 10 months ago
Why does it say "fits your 2007 Suzuki gsxr 600" but I can't find it in the fitment section?
Top 1 Contributor
Over 10 months ago
MotoSportExpert
Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct NGK Iridium IX Spark Plugs for your bike. If you do not know the OEM plug your bike uses, check on the OEM parts section. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Scottie Over 10 months ago Location: Las Vegas
What can cause a "ticking sound" while accelerating and goes away when you pull in the clutch?
Top 50 Contributor Top 1 Contributor
Over 10 months ago
MotoSportExpert
Unfortunately we at Motosport.com are not able to give you repair advice. We highly suggest that you purchase an OEM service manual for your machine and refer to it to answer your repair questions. If you need more assistance, please consult a local repair shop to further assist you in your repairs. If you need parts to assist in your repairs, we are happy to assist you with your parts order.
WhiteBoyMagic1 Over 11 months ago Location: Nebraska
Does this come with all 4 plugs?
MotoSport Staff Expert
Over 11 months ago
MotoSportExpert
No, these spark plugs are sold individually.
train Over 11 months ago Location: raleigh n.c
How many spark plugs does a yamaha fzr 600 take 1999.?
Top 50 Contributor Top 1 Contributor
Over 10 months ago
MotoSportExpert
The 1999 yamaha fzr 600 requires 4 plugs.
Vercetti 1 year ago Location: Georgetown, KY
What are the best spark plugs for a Suzuki Intruder VS1400?
I have a 2000 Suzuki Intruder VS1400 which is stock besides an aftermarket double barrel shotgun exhaust.. I am curious as to what would be my best option for fitment, reliability and performace when it comes to the iridium or basic spark plugs for my specific bike?
1 year ago Location: Fort Benning, GA 31905, USA
soldier
go with these and never look back. bang for the buck will pay for themselves
Top 1 Contributor Expert MotoSport Staff
1 year ago
MotoSportGrantK
If you've never used an iridium plug before I would recommend giving them a try. They provide great reliability and performance over your stock (OEM) spark plug.
HNJR 1 year 6 months ago Location: Louisiana, USA
1993 Kawasaki Ninja 1100 zx?
What is the spark plug gap of these plugs: 1993 Kawasaki ZX1100 - Ninja ZX11 NGK Iridium IX Spark Plugs
MotoSport Staff Expert
1 year 6 months ago Location: Portland, OR, USA
MotoSportRyanT
The gap required may vary depending on the bike they are for. Normally NGK will pre-gap the plugs to the correct gap for the plug, but I would have to recommend that you refer to your motorcycles owners or service manual for the specific gap settings for your 1993 Kawasaki ZX1100 Ninja.
1 year ago Location: Fort Benning, GA 31905, USA
soldier
should come already gap for your bike when you order them
steve 2 years ago Location: Melbourne VIC, Australia
I need some new spark plugs for my Hyosung Gt250 2008. Can you recommend a few for me please?
MotoSport Staff
2 years ago Location: Portland, OR, USA
MotoSportExpert
The standard plug would be an NGK CR8E or the upgraded iridium plug is the CR8EIX for your 2008 Hyosung Gt250
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