2019 King Quad 750
I went to Oreillys to get some new spark plugs. I know there was a thread talking about some Iridium plugs so i decided to try some. I took the stock number off of my normal plugs( NGK LMAR7A-9) and told the lady to cross reference them to the iridium kind. She gives me NGK SIKR9A7, when i looked at the other thread the guy said he used NGK CR6EIA-9 , it seems both are Iridium plugs so im wondering if the ones i have will work or should i take them back?