SPARKPLUGS

bigmoney1520 · Feb 17, 2011

ANY ONE KNOW WHAT SPARKPLUGS FIT IH F20 THE OLD
PLUGS ARE CHAMPION 20 . LOCAL PARTS HOUSE CANT CROSS THAT NUMBER. THANKS

robgIN · Feb 17, 2011

I use Autolite 3077, very good if yours likes to foul plugs. 3076 is the normal Autolite plug for this application, the 3077 has a different style tip and I have had very good luck with them not fouling.

Chuck Heck · Feb 17, 2011

I use those Autolite 3077 in all my older IHC Tractors. They seem to work well. I order them thru my local Advance Auto Parts store, under $3 each.

Owen Aaland · Feb 17, 2011

This link may be helpful for you:
http://www.antiquetractors.com/Research/Spark_Plug_List.htm

rustyfarmall · Feb 17, 2011

(quoted from post at 08:20:41 02/17/11) All the replies that you have been getting are referring to 18mm thread spark plugs. The W-20 champion plug has a 7/8" thread.

This link may be helpful for you:
http://www.antiquetractors.com/Research/Spark_Plug_List.htm

The Autolite 3076 and 3077 is a 7/8" diameter plug.

rustred · Feb 17, 2011

yes, in the champion line you need the W series not the D series plugs. must be in too much of a hurry to bash champion and didnt stop and think these old tractors use the big plugs.

rustred · Feb 17, 2011

oops , talking about in a hurry got my #'s messed up.i believe those 3077 are used in the old WD40 gas start diesel that takes a long reach. yes i know 7/8" is the W series.

Duanes · Feb 17, 2011

W-20 or stock # 520

Charles E. McNelly · Feb 17, 2011

Hi Big Money,
Unless your into keeping every single thing on your tractor original, I personally recommend getting some adapters and go to the new style auto plugs. You would have alot more options. there about 5 bucks a piece for the adapters.
Charles

SPARKPLUGS

bigmoney1520

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robgIN

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Chuck Heck

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Owen Aaland

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rustyfarmall

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rustred

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rustred

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Duanes

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Charles E. McNelly

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