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

Genuine GM ACDelco Spark Plug R45TS

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

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

ACDelco R44T Copper Spark Plug - 4 Pack - 19354432 GM OEM

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

ACDelco R46SZ Copper Spark Plug - 4 Pack - 19355455 GM OEM

ACDelco R45XLS Copper Spark Plug - 4 Pack - 19382850 GM OEM