Deciphering Sparkplug numbers.

The following charts contain information about spark plugs and their selection. You can use them to cross reference different numbers by different manufacturers. The TLS uses CR8EK or CR9EK plugs as standard. My GSXR1000K3 uses CR9E as standard.

Click on the charts for a larger one.

NGK No.1

NGK No.2

Denso

Champion