It is constructed from durable materials that are corrosion and abrasion resistant. Spark Plug, CR7EKB NGK - Vespa Toronto West NGK CR7E Standard Spark Plug, Spark Plugs - Canada The spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling. Dual ground electrodes for more consistent spark. Corrugated ribs on insulator prevents flashover NGK the number 1 for spark plugs, Multi ground electrode â¢OEM quality â¢Triple-gasket sealing process â¢Consistent performance â¢Plug of choice in millions of vehicles This plug is a Long reach resistor type spark plug, with 10mm x 1mm thread, fits with plug caps that use a nipple on the spark plug. Triple gasket seal eliminates combustion gas leakage and the zinc dipped shell prevents corrosion Solid copper core for greater spark, superior heat dissipation and conductivity. Ngk- Bougie d'allumage Standard - CR7EKB- 21030139-4455 – Kustom Store... Triple gasket seal eliminates combustion gas leakage and the zinc dipped shell prevents corrosion. Longer insulator nose prevents fouling. NEW OEM NGK STANDARD SPARK PLUG PB7HS #5110 - Sun Coast Cycle Sports | Used Motorcycle Parts