NGK nickel spark plugs are engineered with a unique V-groove center electrode, enhancing ignitability and minimizing quenching. The 98% pure copper core ensures superior heat dissipation, providing more reliable starts and reducing the risk of overheating.
Cold-rolled threads are designed to prevent cross-threading and protect the cylinder heads from damage
The trivalent plating eliminates the need for anti-seize
The high-grade alumina silicate ceramic adds durability and longevity to the spark plug
 
Features:
High-grade alumina silicate ceramic - Creates a stronger insulator to reduce dielectric punch-through (Caused by spark exiting through the side of the ceramic)
Cold-Rolled Threads - Prevents cross-threading and damage to cylinder heads
98% Pure Copper Core - Increased heat dissipation for reliable starts, prevents spark plug overheating
Trivlent Plating - No anti-seize required
90-degree V-Groove center Electrode - Allows the spark to occur closer to the outside of both the center and ground electrodes for better flame expansion; reduces quenching and improves ignitability
 
Increased Heat Dissipation
The Combination of NGK's high-grade pure alumina ceramic and 98% pure copper core enables the spark plug to dissipate large amounts of heat quickly. This ultra-wide heat range prevents the spark plug from overheating while providing reliable starts.
 
Higher Ignitability
The "Quenching Effect" is where the cooler center and ground electrodes drain the flame core's energy through heat transfer. If quenching is severe,  the flame core can be extinguished, causing ignition to fail. These plugs are designed to reduce this quenching effect, resulting in better ignition performance. 
 
All NGK Spark Plugs must pass extensive testing procedures and quality checks to ensure fit & performance. 
Mechanical vibration testing 
Thermal shock testing to -40°F
Tightest resistor manufacturing process in the industry
Manufactured in ISo 11565 certified facility
Gap measurement with laser precision throughout the manufacturing process