Spark plug question

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Scott from Marshfield
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Spark plug question

Postby Scott from Marshfield » Fri Oct 25, 2019 3:14 pm

Hey quick question will these spark plugs work for my 1965 farm all cub? I found a bag of 4 them in the barn- they say NGK AB-6
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Eugene
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Re: Spark plug question

Postby Eugene » Fri Oct 25, 2019 3:51 pm

It cross references to a Champion D21. Should/will work.
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tst
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Re: Spark plug question

Postby tst » Fri Oct 25, 2019 5:02 pm

that # crosses to a champion D16, it will work but is a "colder" spark plug

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radioguy41
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Re: Spark plug question

Postby radioguy41 » Sat Oct 26, 2019 7:36 am

"Colder", meaning if you're burning any oil the colder plug will foul sooner than a hotter plug, especially in cooler parts of the country where the engine is likely to run slightly cooler.
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