This may be a real dumb question. but I'm just 100 percent sure about it. Its time for a sparkplug change in my 2005 CBR 1000.

the original spark plugs are NGK IMR9C- 9HES. All that I can seem to locate are IMR9C_ 9H. I am told that these replace the HES model. ( by someone I wasnt convinced by). So I am not sure.

Does anyone know for sure if these plugs are indeed the same? Physically, they are the same, but I am worried about some oddity messin up my ignition system if its not the correct plug.. or possibly suffer from a performance standpoint..

thanks,

 

Go to ngk's website and plug in your year, make model. I would do it for ya but im feelin lazy It will give you any plug #'s you can use for that bike.

 

There the same plug the only difference is the es plug has a stainless steel washer an the 9h are aluminum. Also I said something about this some time ago. Go to advance auto parts you can get the 9h for $9.00 a plug.

 

thanks, that is actually where I purchased them. It beats the 15 bucks at the dealership. I just wanted to make sure there wasnt some difference inside the plug. After I got home with them, I looked them up on the internet, even ngk's website andI couldnt locate the difference in them.

thanks again.

 

Your welcome my company deals with ngk I had the rep Chris look it up for me. By the way I have 9h in my 06 cbr 1000 I did the pair block off plate so I change them wail I had it a part.