NGK ER9EH Spark Plug for 50cc 4 Valve Engines For Vespa LX 50, Vespa S 50, Piaggio Typhoon 50cc and several others *See detailed fitment list*
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NGK ER9EH Spark Plug for 50cc 4 Valve Engines
Complete fitment list at bottom of this page.
This is the AF1 Racing recommended alternative to OEM Spark Plug 641387.
Please note: This spark plug does not come pre-gapped. You must gap this plug to 0.6-0.7 mm before use.