Champion RG94C Spark Plug Copper Plus

The Champion RG94C is a discontinued spark plug that is no longer manufactured. Where a current equivalent exists it is shown in the alternatives below.Champion Copper Plus is the classic copper-cored spark plug. The copper core inside the nickel-alloy centre electrode draws heat away from the tip, widening the range of driving conditions the plug tolerates without fouling or overheating. Champion's heat-range letter and number system dates back decades, so Copper Plus types are the natural replacement on classic cars, motorcycles, marine and garden engines originally fitte