NGK
NGK WR5IX 7510 Spark Plug Iridium IX
£10
Lowest price we found
£63.80
The Champion RTW80N Copper Plus is a spark plug with a copper core inside a nickel-alloy centre electrode. It is discontinued and no longer manufactured.
Copper Plus plugs are described as replacements 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.
At a glance
Price at the shop, last 22 days
The price has stayed at £63.80 since 13 October.