NGK
NGK WR5IX 7510 Spark Plug Iridium IX
£10
Lowest price we found
£26.40
The Champion W77N is an industrial spark plug, also referenced as CCH539, and replaces 539. It is fabricated with precious metals and features F.I.S.S resistor technology and a Hot Lock design.
The plug is designed for high-compression and aggressive environments, including high-temperature and high-load service environments. It is compatible with alternative fuels (gases). If you are unsure whether it is the correct part for your vehicle, use the cross-reference table.
At a glance
Price at the shop, last 75 days
The price has stayed at £26.40 since 19 August.