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Discussion Starter · #1 ·
I just posted one thread on this, but I've run into a new problem - I pulled the first plug - it was an NGK. I go to replace it with a Champion 7034 (I have a 2003 TJ Sport), and the Champion plug is longer than the NGK - so much longer, in fact, that my spark plug socket can't even get to the part of the plug with the nut.

Do I:

1. Get different plugs?
2. Get a longer socket?
 

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Is the threaded length the same? Also what is the number on the NGK?
 

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Champion RC12ECC - I used these in my '02. They seem to work perfectly and are the OEM recommended plug.
 

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BTW I've tried lots of plugs over the years but in my opinion the ones that perform best and last much longer have been Champion 4412 Truck Plugs.
 

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Get a longer socket. The plugs you are putting in are applicable for your jeep and most others will be the longer style too. The threaded part is the critical part.
 

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Everything I said applies to my 99 so since yours is newer and is distributorless, there are other factors involved. Go with OEM and you can't go wrong.
 

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I try to go OEM for everything. This way it's guaranteed to fit.
 

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The Champion 7034 spark plug is the correct model spark plug. In fact, it is a superb spark plug for 2000 and newer 4.0L engines. Try a different spark plug socket.
 
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