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Discussion Starter #1
Hiya,
Anyone techie enough to know the thread type required for this switch?
I have the following to choose from -

1/8" x 27NPTF (Lucas SMB423)
3/8" x 24UNF (Lucas SPB401)
M10 x 1 (Lucas SMB426)

These appear to be the various auto-parts available and cost only £6 as opposed to the £20 wanted by my local Triumph dealer.

Only problem is I don't know which one I need....lol!

Thanks in advance.
Doony
 

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Discussion Starter #3
Cheers, me being a thicky when it comes to this sort of thing....I suppose you mean the M10 then?


Take care out there.
 

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5,117 Posts
Yep, it would be the M10. It's highly unlikely that it would be either of the other two.
You should also fit new copper washers when you change the switch out.
 
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