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Spark Plug CHAMPION L86C copper M14x1,25, wrench width 20,8mm short thread similar to BOSCH W8AC/W9AC/W10AC/DENSO W20FSU/NGK B5HS/B6HS | SIP-Scootershop
Spark plug CHAMPION L86C short thread for Vespa (equivalent degree of temperature at NGK B6HS - Bosch
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