1979 Champion Spark Plug No. 5 Master Application Catalog

Atlas Spark Plugs Domestic/Imported Application & Specification Data 1981

1974 spark plug application Catalog

Vintage 1959 Champion Spark Plugs Size Chart Application Guide Car Truck

1979 Champion Spark Plug No. 5 Master Application Catalog

1974 ATLAS HI-PERFORMANCE SPARK PLUGS Specification Data Auto Shop Cart Mechanic

Vintage 1962 Champion Spark Plugs Size Chart Application Guide Car Truck

1998 Champion Spark Plug Small Engine Application Catalog