What's the name of the Thing that Threads onto the Spark Plug?

rohmell

rohmell

Active Member
Like the title says, what's the name of the thing that threads onto the top of the spark plug?
Is there a proper name for it? I see it sometimes called a 'nut' or a 'ball'.
Are they available for sale somewhere like a pack of ten or something?
 
I have heard it called "Terminal nut", "Ring screw terminal", "Screw on terminal" either way its on the part of the plug called "Terminal"
 
i was gonna say, "the engine..." :)

oh, and i've always called it a terminal.
 
Last edited:
Yup, it's a terminal and you only really need it if your plug boot requires it.

I've had my best luck without em.
 
bairdco said:
i was gonna say, "the engine..." :)

oh, and i've always called it a terminal.
Click to expand...
The cylinder head?
Personally, I like to thread the plug into the head instead of rotating the whole bike around.
Hmmm, reminds me of an old joke about light bulbs, ladders and people of a certain European persuasion.
Tom
 
Last edited:
I guess we all know that some of the spark plugs have them where they don't unscrew, it is continous with the electrode all the way throught. It should be the same rough dimentions of the terminal nut, but will break the spark plug apart if attempted to twist.

Just thought I'd mention that, so then ya in that case the engine unscrews!

Measure Twice
 
You must log in or register to reply here.
Back
Top