NGK Spark Plug Stock # 6507

The NGK Spark Plug Stock # 6507 (IFR6B) is a precision ignition component designed for reliable engine starts and consistent combustion across a variety of automotive applications. It is ideal for those maintaining daily drivers, restoring classics, or fine-tuning modified engines.

This spark plug features NGK's iridium-enhanced electrode design, which resists erosion better than standard copper plugs and maintains optimal spark gap stability over extended service intervals. The superior melting point of iridium allows for a smaller, more precise electrode tip that ignites the air-fuel mixture efficiently, resulting in cleaner combustion and reduced fouling.

Mechanics and automotive enthusiasts choose the NGK IFR6B for both stock engine maintenance and performance applications. Its compact design ensures easy installation, while standardized threads and reach dimensions guarantee proper fit and consistent heat dissipation in the engine's combustion chamber.