NGK
NGK WR5IX 7510 Spark Plug Iridium IX
£10
Lowest price we found
£7.08
The NGK MR8K-9 is a spark plug in the NGK Standard range, with a 10 mm diameter and a nickel-alloy body.
Its centre electrode has a copper core, which carries heat away from the firing tip. The conventional plug is a direct replacement where that type is specified. It has triple-seal construction against gas leakage and a corrugated insulator to prevent flashover, and is easy to inspect and re-gap.
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Price at the shop, last 24 days
The price has stayed at £7.08 since 9 October.