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23.49 USD (3,744 JPY)
Delivery Information
In Stock, Ships within 72 hours.
Estimated arrival date around
[Stock Number] 7792
[Shape] Screw type / C-EH
[Size]
Screw diameter: Φ10.0mm
Screw length: 19.0mm
Hexagon dihedral width: Hex 16.0mm (Semi-screw)
[NGK part number] R0409B-9
[Type] Racing Plug / Resister Plug
Plug unit and terminal image: [13-c] See Image 7
[Heat Value] 9
[Compatibility Information] HONDA Stock Part Number Compatibility: 31912-KRN-731
**Even if you purchase in units of 10 pieces (1 box), it will not be delivered in 1 box.
*Terminals, tightening angle, etc. may differ depending on the model.Please refer to the link for the detailed fitting and installation instructions..
* The image is only for reference. The image shown may differ from the actual product.
| [Features of NGK plug] |
| - This is a super "wide range" plug - |
| The center electrode , The center electrode is a "copper cored" construction with copper sealed to near the tip to allow a large amount of heat to escape quickly. The result is an ultra "wide range" plug that is resistant to burning and smoldering. |
 |
| Comparing the thermal characteristics of plugs with copper cores and plugs without copper cores, the plugs with copper cores have superior thermal characteristics and fouling resistance, and a wider thermal range. |
| ■ Heat value of the plug |
| - High alumina porcelain from New Ceramics is used as the insulator - |
| - Excellent insulation at high temperature and reliable sparking. ・Excellent heat conductivity and prevents seizure. ・High thermal shock resistance (rapid heating and cooling) and excellent mechanical strength. |
| - Strong and airtight in construction - |
| Because the insulator and the main metal fittings are joined by special powder, it is excellent in airtightness and strong in structure. |
| Special Nickel alloy electrodes are used for superior durability. |
 |
| - Corrugations in the insulator ensure good insulation and prevent flashover - |
| During sparking, a high voltage is constantly applied between the terminal and the main unit bracket. High voltages try to leak along the surface of the insulator and flashover is more likely to occur if the required voltage between the spark gaps is high. In order to prevent flashover, insulator corrugations (folds) are provided to increase the insulator surface distance between the terminal and the main fittings to ensure insulation and prevent flashover. |
| What is a flashover... |
| It is a spark between the terminal and the main unit fitting as shown in the image. |
 |
| ■ Flashover |
| ■The advantages of the plug |
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
Reviews with image
Fits:Others Universal Universal Universal
Jul 16, 2016
I am using NGK racing plug for Yamaha exciter 150i It is very good Iridium plug. I put it on my yamaha exciter 150 excellent plant with this NGK racing plug in any weather. Аvery high quality product.It exchanged from the standard Plug used 5,000 km on the occasion of a periodic maintenance.I think that start-up nature became good.I advise everyone to buy it!
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