Amazon.com: Champion Copper Plus Small Engine 825 Spark Plug J4C Carton of 4 : Automotive
Amazon.com: Champion Copper Plus Small Engine 306 Spark Plug (Carton of 1) - L86C for 1974 - 1977 Volkswagen Super Beetle and Volkswagen Beetle : Automotive
Amazon.com: Champion 938M Pack of 4 Spark Plugs
Champion C4 - Alternative spark plugs
Autolite Small Engine Spark Plug, 3924 for Select Briggs, Stratton, Kohler Power Equipment and Lawn Mowers - Walmart.com
WTB: 6 Champion C4 Spark Plugs for a 1926 Boyer Firetruck - Parts Wanted - Antique Automobile Club of America - Discussion Forums