Denso 5301 Tapered cut, u-groove ground electrode

Iridium Power® best demonstrates its performance improvement during Acceleration. The world's smallest center electrode and specially shaped ground electrode deliver maximum spark energy while withstanding Temperatures greater than 4000 Degree Fahrenheit. These features combine to achieve higher ignitability and require lower spark voltage than ever before. As a result, acceleration improves in comparison with normal plugs. To increase ignitability, the important point is to let the flame kernel produced by the spark to grow unobstructed. Normally, this can be accomplished by widening the spark gap. However, this causes spark voltage to increase, which has the opposite effect. Iridium Power uses DENSO's patented U-Groove ground electrode to achieve maximum ignitability while minimizing required Voltage.

Features & Benefits

• Tapered cut, u-groove ground electrode
• Worlds smallest 0.4 millimeter iridium center electrode
• 360 degree laser welding assembly process
• Delivers maximum spark energy while withstanding temperatures greater than 4000 degree fahrenheit
• Features combine to achieve higher ignitability and require lower spark voltage than ever before
• Acceleration improves in comparison with normal plugs
• Unsurpassed center electrode durability
• Improved spark ignition for maximum combustion, even with lean air-fuel mixtures
• Available for many performance and power sports applications
• Limited 1 year warranty

Specifications