Champion Spark Plug C53CX
C Series, 14mm Thread, .750 reach
5/8" Hex, Regular Tip, Cold.
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 C53, C53C, N80, N80G, and N539C plugs.