Champion L78C Sparkplug, L-Series Regular Tip, Hot

Brand: Champion Spark Plugs

Champion Spark Plug L78C
L Series, 14mm thread, .500 reach
13/16 (21mm) hex, Regular Tip, Hot.

This cut-back ground (non-projected gap) style positions the spark approximately 1/16 inch into the combustion chamber to expose the spark to the mixture.