The NGK DF8H-11B is part of the NGK Standard range.A conventional NGK nickel-alloy spark plug with a copper-cored centre electrode. The copper core carries heat away from the firing tip quickly, which lets the plug run cooler under load while still burning off deposits at low speed. NGK's standard range is the direct replacement where a conventional plug is specified, including the marine and powersports types fitted to outboards and personal watercraft. Easy to inspect and re-gap, with a triple-seal construction against gas leakage.
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