Replacement plug wires
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Cruiser
Joined: Jul 2015
Posts: 155
Likes: 24
From: New York, NY
Replacement plug wires
Hi all. Running an 06 FXDLI and I plan to move the coil to where the horn was. I cant find specs on the stock plug wires anywhere (unless I’m searching for the wrong thing). I’d like to buy the more made so I don’t have to crimp anything. There is a set of 10mm screaming eagle wires on the HD site that are (31967-08A or 31939-99C) what I’m
looking for but HD says it doesn’t fit my bike. I wonder if that is because both wires appear to be the same size which is not the same as the stock wires. Have been through parts book, service manual and the forum. Any advice or referral is appreciated. Just want even length, prefer red and pre made. Thanks.
looking for but HD says it doesn’t fit my bike. I wonder if that is because both wires appear to be the same size which is not the same as the stock wires. Have been through parts book, service manual and the forum. Any advice or referral is appreciated. Just want even length, prefer red and pre made. Thanks.
Intermediate
Joined: Jan 2019
Posts: 47
Likes: 21
From: Saint George, Utah
We did this on my kid's Sportster. Used two of shorter length. We used NGK plug caps that screw onto the end of the cut wire. (No crimp). You'll want the terminal nut style. Stock wires are 8mm I believe. Performance wires are probably 10mm.
Last edited by BUILT; May 21, 2021 at 07:37 AM. Reason: Add info
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