Stock Number: 2411
Shape: Terminal Separated Type
Size:
Thread Diameter: Φ14.0mm
Thread Length: 19.0mm
Hex Size: 20.8mm
NGK Part Number: B8ES
Plug Body/Terminal Image: See Image 5 [1-a]
Heat Range: 8
Compatibility Information: DENSO: W24ES / W24ES-U
HONDA OEM: 98079-58810 / 98079-58840 / 98079-58870
YAMAHA OEM: 9079E-ND030 / 9079E-ND064 / 94701-00045 / 94702-00045 / 94703-00045
SUZUKI OEM: 09482-00091 / 09482-00196 / 09482-00225
KAWASAKI OEM: 92070-037 / 92070-053 / 92070-1015 / 92070-1018 / 92070-3011

** Even if purchased in units of 10 (1 box), they will not be delivered in a single box.
* Terminals and tightening rotation angles may vary depending on the vehicle model. Please refer to the links for detailed fitment and installation instructions..

* The image is only for reference. The image shown may differ from the actual product.

Provides stable ignition performance and combustion efficiency at an affordable price. Brings out the engine's original performance.

* Effects may vary depending on the vehicle.

About Plug Terminal Shapes:
Please select a terminal shape that matches your engine and plug cord installation side. Plug terminal shapes include "Integrated," "Separated," "Threaded," and "Punch-Riveted" types. Generally, "Integrated" and "Punch-Riveted" types are used for four-wheeled vehicles, while "Threaded" types are used for motorcycles. Plugs used for both may have a "Separated" configuration. The terminal part of the "Separated" type can be removed, but it cannot be removed for "Integrated" or "Punch-Riveted" types. Forcing them off may break the terminal. When using a "Separated" type as a "Threaded" type, remove the terminal nut. If using with the terminal nut attached, ensure there is no looseness; if loose, tighten lightly with pliers.

NGK Plug Features:
- Ultra "Wide Range" Plug -
The center electrode features a "copper core" structure with copper sealed near the tip to quickly dissipate large amounts of heat. This achieves an ultra "wide range" plug that is resistant to both overheating and fouling. Comparing the thermal characteristics of copper-cored plugs versus non-copper-cored plugs, copper-cored plugs have superior thermal characteristics and fouling resistance, with a wider heat range.

- Uses high-alumina ceramic for the insulator -
Excellent insulation at high temperatures for reliable sparking. Excellent thermal conductivity to prevent overheating. Resistant to thermal shock (rapid heating/cooling) and high mechanical strength.

- Sturdy structure with excellent airtightness -
The insulator and main metal fitting are joined with special powder, providing excellent airtightness and structural durability.

- Excellent durability -
Uses special nickel alloy electrodes for superior durability.

- Insulator corrugations (ribs) ensure insulation and prevent flashover -
High voltage is constantly applied between the terminal and the main metal fitting during sparking. If the required voltage between the spark gaps is high, flashover can easily occur as the high voltage attempts to leak along the insulator surface. To prevent this, insulator corrugations are provided to increase the surface distance between the terminal and the main metal fitting, ensuring insulation and preventing flashover.

What is Flashover?
It is sparking between the terminal and the main metal fitting as shown in the photo.