Application: G3408 Std plug for 9.4:1 and 10.3:1
Electrode Gap Setting: Refer to Operation Maintenance Manual for your engine or contact local Cat dealer
2N-2839: Steel Spark Plug
Engine Model: CG137-08, CG137-12, D379B, G3304, G3304B, G3306, G3306B, G3406, G3408, G3412, G343