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⚡ Ignite your ride with NGK’s iridium edge – because every start counts!
The NGK CR9EIX Iridium IX Spark Plug is a genuine OEM replacement part designed for cars and trucks, featuring a durable iridium core that ensures longer lifespan and reliable ignition. Compatible with a wide range of vehicles, it offers easy installation and improved startup performance, making it a top choice for professional-grade maintenance and enhanced engine efficiency.
| ASIN | B004SKYAWM |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #10,642 in Automotive ( See Top 100 in Automotive ) #39 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Iridium |
| Customer Reviews | 4.8 out of 5 stars 602 Reviews |
| Included Components | 3521 |
| Item Highlight | Replaces RG6HCC 31600012 31600085 90793-20123 90793-20125 90793-20151 90793-2B125 99000-69835-CR9 999-06910-X9-024 4132. |
| Item Weight | 4.48 ounces |
| Manufacturer | NGK |
| Manufacturer Part Number | CR9EIX |
| Manufacturer Warranty Description | Includes manufacturer provided warranty |
| Model Number | 3521 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 7085731 |
| Thread Size | 10mm |
| Top Material Type | Iridium |
| Unit Count | 1 Count |
| Vehicle Service Type | Car, Truck |
D**D
Great maintenance item. Performs great!
Excellent for my ‘23 HD Road Glide Special. Put a little anti seize and dielectric grease. Easy to install, 25 min job and the bike runs like it should!
T**N
2024 Yamaha VX Limited Tr1 Engine
We use these plugs in our 2024 Yamaha VX limited waverunner with the TR-1 engine. They do NOT improve horsepower or top speed, so if your purchasing for one of those, that is a fools errand. What these plugs DO in fact benefit you is longevity and quicker firing at startups. Some folks are saying they notice quicker throttle response and all and that's just psychological foolery lol. These are an excellent replacement for the oem NKG CR9EB plugs if your looking for less changing intervals and improved startups.
R**N
Race quality
Plugs are for low spark engines. Quality machined and ceramic tipped.
R**S
Fast at great price
Great performance plug
P**1
Real Deal.
Real Deal. As Advertised. Good Seller.
T**M
2018 street glide special Milwaukee 8
Worked as expected. Fitment 2018 street glide special.
E**G
Great plugs
Second time using these in my 2018 RGS. Spark gap was correct out of the box--the bike seems to like them.
K**R
Possibly user error?
Only leaving a 4 star review because we haven't determined if these spark plugs are the correct fit or if it is user error. They arrived on time and in good condition but my bike doesnt run as good as it did before replacing the other plugs with these.
O**O
Pésimo material
Muy mala calidad del producto original.
M**E
Beau bon et beaucoup moins cher pour le jetski
Parfaite pour le jetski excellente qualité
B**R
Long Life Plugs
I use these NGK CR9EIX iridium plugs in my 2017 M8 Street Glide. Starts and runs great. In my experiences using Iridium plugs in my other bikes......they last LONG.
C**S
Highly recommended
Excellent night and day difference from regular plugs
D**N
Price
Way better price then harley plugs
Trustpilot
3 weeks ago
1 month ago