NGK Standard spark plugs provide excellent service
for many applications, including auto/light truck, powersports
and small engines. They feature a triple gasket sealing process
that virtually eliminates gas leakage past the shell. Other manufacturers
use a one- or two-step sealing process. NGK Standard spark plug
insulators are made from 99% pure alumina silicate, allowing for
longer insulator noses for reduced fouling. NGK Standard plugs
feature a solid copper core that provides superior heat dissipation
and conductivity. Their resistors are produced with a glass and
carbon mixture, which is fired to ensure superior performance
and durability. Some manufacturers use inserts that break. NGK
Standard plugs also have corrugated ribs to prevent flash over
and cold rolled threads to prevent damage to the cylinder head.
