Wanted: Four Original Knurled Nuts For ignition Wires

[GEmering]

I would like to find four original knurled nuts that hold the ignition wires to the spark plugs on my '13 Touring.
I have reproductions so do not need repros.

Thanks,
Gene

[TRDxB2]

I have seen so many different patterns of knurled spark plug nuts with an xxxx pattern I'm not sure what original is but an old ad looks like MAc'S.
So is what is correct? By the way many old ads show the nut that way.

[George Hand]

Gene, Some spark plugs have Metric threads & some are SAE. It depends on your spark plugs. George

[TWrenn]

Yeh the one in Mac's ad is nowhere near the same!

[GEmering]

I’ve attached a few photos of the knurled nuts that are on my car.
I believe that the ChampionX plugs I have are newer.

[GEmering]

Here’s a photo of the Plugs

[Mark Gregush]

I think the slot was so you could use the Rajah type terminals that clipped on.

[RajoRacer]

If they're "newer" current Champion X, they might be metric thread - I don't believe anyone produces an "original" copy for those - I have some current repro X's & will check the thread size. If they're original or an older reproduction then these will fit - 8-32 is the original thread - I have a limited quantity.

[RajoRacer]

Come to think of it Gene, I have some NOS original X's in my display case - I'll open one up !

[GEmering]

Thanks Steve!