ACDelco R45 Copper Spark Plug - 4 Pack - 19354428 GM OEM

Champion 431 Copper Plus Spark Plug RC14YC - 4 Pack

Champion 809 Copper Plus Spark Plug RA6HC - 4 Pack - Small Engine

ACDelco R45TS Copper Spark Plug - 4 Pack - 19354415 GM OEM

ACDelco R43TS Copper Spark Plug - 4 Pack - 19354419 GM OEM

ACDelco CR43TS Copper Spark Plug - 4 Pack - 19354425 GM OEM

ACDelco R44TX Copper Spark Plug - 4 Pack - 19369869 GM OEM

Champion 825 Copper Plus Spark Plug J4C - 4 Pack