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spark plug cross reference

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Old Jan 2, 2011 | 08:03 PM
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Default spark plug cross reference
what is a alternative replacement for the Harley 6R12 plug. I want to change plugs in my 2004 sportster.
 
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Old Jan 2, 2011 | 09:31 PM
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Autolite 4164
 
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Old Jan 2, 2011 | 09:38 PM
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thanks, that is what I got on a cross reference chart, but really wanted to be sure before getting them.
 
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Old Jan 3, 2011 | 07:37 AM
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Why not just runthe HD plugs, they don't cost much? I always run OEM plugs and everything, unless it's a racing engine.
 
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Old Jan 3, 2011 | 08:55 AM
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Here's a complete list in case anyone is interested.

HD Standard - 6R12
HD Gold - 6R12G
HD Platimun - 6R12PP
Champion - RA8HC
Autolite - 4164
Autolite Platimun - AP4164DP2
Accell - 2418 or Y2418P
Spitfire - SF416D
Screamin Eagle - EX12S or EX12P
NGK - DCPR7E
 
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Old Jan 3, 2011 | 11:00 AM
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Originally Posted by XL50#674
Why not just runthe HD plugs, they don't cost much? I always run OEM plugs and everything, unless it's a racing engine.
So you should/could run the Champion RA8HC to save even more money, as that's what HD uses. Champion just rebadges them with the HD logo.
 
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Old Jan 3, 2011 | 06:18 PM
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Originally Posted by XL50#674
Why not just runthe HD plugs, they don't cost much? I always run OEM plugs and everything, unless it's a racing engine.
Harley dealer is 50 miles away, auto-zone is 2 miles away.
 
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Old Jan 3, 2011 | 06:19 PM
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Thanks for the info.
 
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Old Jan 4, 2011 | 08:26 AM
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I run the NGK DCPR7EIX
 
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Old Jan 4, 2011 | 08:40 PM
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Originally Posted by tidefan60
what is a alternative replacement for the Harley 6R12 plug. I want to change plugs in my 2004 sportster.
And what size socket needed to pull these little buggers?
 
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