Case DC4 spark plug

nitrous · Sep 5, 2010

Hi guys can you help me with the plug number for a DC-4 1953. Looking for champion #
Thanks

John Saeli · Sep 5, 2010

Do yourself a big favor & install Autolite 3116. Power Tip, Non Resistor.

JGarner · Sep 5, 2010

Champion number is good but be advised I would cross to an AC plug. Champion has had serious quality problems in the past several years. I just had to replace a set of new Champion plugs in my 630. I switched to AC and it runs great. Others on this forum will agree that they have had problems with Champion plugs as well.

Jim

nitrous · Sep 5, 2010

Ok I have no problem going to ac or autolite. What is the ac number

Anonymous-0 · Sep 5, 2010

the champion old number is d16 the new number is 516 I think they have both on the box the 516 is above ane the d16 below it. hope this helps.

Keith

JGarner · Sep 6, 2010

NAPA or most any auto parts stores can cross the Champion D16 or 516 number from the post above to AC.

Jim

Ken Ind. · Sep 6, 2010

d-21 run in both my dc and my ih h

nitrous · Sep 7, 2010

Well after some research on this site looks like Im going with the Autolite 3116.
These are ok for DC with a mag I assume ? Also is the gap ok out of the box or what is recommendation ?

Thanks

Case DC4 spark plug

nitrous

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John Saeli

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JGarner

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nitrous

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Anonymous-0

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JGarner

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Ken Ind.

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nitrous

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