parameter of EIX-DCPR7,iridium,thread 12mm,reach 19mm (3/4"),hex size 16mm (5/8") , heat range 7, gap 0.8mm (0.32").

 

Match with NGK , DCPR7E,DCPR7EVX,DCPR7EIX

 

Match with DENSO, K20PR-U,IXU22

application chart for automobile,