ACCEL 8196 Spark Plug

14mm Thread - .708 in Reach - Heat Range 6 - 2 Pack of 0526-4;

Accel's U-Groove spark plugs have set the standard for high performance spark plugs. Accel engineers developed and patented the U-Groove technology which permitted the spark to develop a much larger, hotter and fuller flash front. That effectively gave a more complete burn of the air/fuel mixture in the combustion chamber. Over the past 25 years engine head design and fuel management technology has changed.;