Name NGK Spark Plug ER-9 EH-6N Item No. L-SAZNGKER9EH Brand NGK
2-stroke, 4-stroke, it doesn't matter, choosing the right spark plug is really important. There are some main criteria for deciding which spark plug is the right one for your engine: length of thread (or reach), diameter and heat range. This is an NGK Spark Plug ER-9 EH-6N. Suitable for Vespa with either original set-ups or tuned engines (Sport, Racing, aluminium cylinder).
- diameter: 10mm
- hex size: 16mm.