Champion Spark Plug C59CX
C Series, 14mm thread, .750" reach
5/8" Hex, Regular Tip, Warm.
This cut-back ground (non-projected gap) style positions the spark approximately 1/16 inch into the combustion chamber with a modified (shortened) ground electrode. This helps expose the spark to the mixture and protects against pre-ignition from an overheated ground electrode.
Replaces discontinued Champion C59C, N60, and N542C plugs.