Description:

NGK Racing Series Plugs are Engineered to Withstand the Harshest Engine Conditions. The recommended spark plug of choice for high performance rotary engine, the NGK R6725-115 has an 11.5 heat rating designed for use with racing fuels including methanol, C16 and E85.

Additional features include:

• Special Insulator Nose Configurations Improve Throttle Response.
• Corrugated Ribs Prevent Flashover.
• Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer.
• Copper Core Aids in Heat Removal.
• Triple Seals Prevent Leakage.

Plug Specifications:

• Thread Size: 14mm.
• Hex Size: 20.6mm.
• Reach: 21.5mm.
• Seat Type: Gasket.
• Gap: 0.7mm.
• Terminal Type: Solid.
• Resistor: Yes.