








⚡ Ignite your drive with NGK Iridium IX – where power meets precision!
The NGK CR9EIX Iridium IX Spark Plug 4-pack offers professional-grade ignition performance with a durable iridium core, ensuring efficient fuel combustion and reliable engine starts. Designed as a direct OEM replacement, these spark plugs fit perfectly and are made in the USA, trusted by thousands of satisfied customers for enhanced vehicle performance and longevity.
| ASIN | B004SKYAWM |
| Brand | NGK |
| Core Material | Iridium |
| Country of Origin | USA |
| Customer Reviews | 4.8 4.8 out of 5 stars (452) |
| Date First Available | 16 July 2021 |
| Item Dimensions LxWxH | 8.4 x 2.4 x 8.4 Centimeters |
| Item Weight | 127 g |
| Item model number | 3521 |
| Manufacturer | NGK |
| Manufacturer Part Number | CR9EIX |
| Model | 4 pack NGK Iridium IX 3521 Spark Plug |
| OEM Part Number | 7085731 |
| Position | Front, Rear |
| Product Dimensions | 8.41 x 2.39 x 8.43 cm; 127.01 g |
| Thread Size | 10mm |
| Top Material Type | Iridium |
| Vehicle Service Type | Car |
S**T
Good item would buy again
R**R
They Look good ngk quality plugs
D**.
Great price for these quality spark plugs. My bike is running better!
I**I
Plugs were perfectly packaged for overseas shipping. Arrived in expected time frame. Price was better than expected. Great company to deal with as they supplied timely ongoing updates of processes right up to delivery. Many thanks 👍
B**L
I installed these in my 2021 Indian Scout Bobber ABS. I can see the improvement over the regular plugs. The bike starts better and runs better at idle and full throttle. I recommend them.
Trustpilot
1 month ago
1 month ago