NGK
NGK WR5IX 7510 Spark Plug Iridium IX
£10
Lowest price we found
£7.03
The Champion C61HCX/003 Copper Plus is a spark plug with a copper core and nickel-alloy centre electrode. The C61HCX is discontinued and no longer manufactured.
Copper Plus plugs are described for classic cars, motorcycles, marine and garden engines originally fitted with Champion, and as standard service plugs on many later vehicles. The plug is easy to gap and inspect, with rugged construction suited to engines running rich or being started infrequently. The copper core draws heat away from the tip.
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Price at the shop, last 23 days
The price has stayed at £7.03 since 13 October.