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Slooptin

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Changing spark plugs and this came out with one of them. What the heck is it?
454 on cylinder 4 for reference
 

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1973c10

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Basically it's a spark plug extension shield to keep the spark plug electrode
a little further out they are generally used on an engine that is worn and burning oil causing the spark plugs to foul
 

Rusty Nail

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Im bettin it aint there for no reason.
Those things are worth their weight in gold!

Put it back!
 

Camar068

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Im bettin it aint there for no reason.
Those things are worth their weight in gold!

Put it back!

LOL, wish I'd known about em when I had the durango.
 

bucket

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Do they not make those anymore?

I had an old 250 I6 that ran like a watch after I put one of those in #4 and #6.
 

Rusty Nail

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Speakin of the 250 I6, work continues on the 250 V8...as a point of interest, just sayin.

There's a Dorman part # for those, right?
Ima call O'reilly.
 

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