⚡ Ignite your ride with NGK’s precision spark!
This NGK Spark Plug CR9EK set of 4 features a copper core for enhanced conductivity and a ceramic top for superior heat resistance. Designed with a 14mm x 1.25mm thread size, these genuine NGK Japan parts offer a direct fit replacement ideal for watercraft engines, ensuring reliable ignition and long-lasting performance.
| Brand | NGK Japan |
| Core Material | Copper |
| Thread Size | 14mm x 1.25mm |
| Top Material Type | Ceramic |
| Vehicle Service Type | Watercraft |
| UPC | 605349701139 |
| Manufacturer | NGK Japan |
| Item Weight | 4.5 ounces |
| Product Dimensions | 3.07 x 0.85 x 2.96 inches |
| Manufacturer Part Number | 4548 |
A**B
As described
Does what it says on the tin.I use these on a ZX14, ZX9R, and on a SV1000S. On the 14, I go one step colder (CR10EK) for nitrous use. The SV has these or one step hotter (CR8EK--which is what's spec'd for that motor), depending on which I had handy at the time.As per the ancient motoman site, these are good for 2hp on an inline 4, vs 'normal' plugs. Works for me. I have not pushed more than a 50 shot of nitrous past them, but don't forsee issues with the plugs so long as the ignition timing is kept in check.
C**O
exelente
exelente
G**1
Factory replacements
Worked well and the low rpm stumble is gone.
Trustpilot
2 months ago
1 month ago
