NGK CR9EIA-9 candele laser iridio x4 pezzi set, basso chilometraggio, diagnostica economica

You are buying a good USED set of sparkplugs, CR9EIA-9, original NGK not china-mart knock offs, tested as working well and with low mileage as seen in the photos. For every engine running fault you would have to start your diagnostic with a good set of spark plugs and after this expensive exercise, to narrow down the fault to other parts.

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