JE/Pa

Member
Dont know what I should use,would like to buy new spark plugs for my farmall cub,but unsure what is recommend for it, can anyone recommend the proper plug for cub,would appreciate any advise.
 
A catalog I have says to use A306803 plugs but it does not say the brand of the plug . Me I would use the plug that would cross over the the NGK brand since now days with the gas we have the NGK plugs seem to hold up real well
 
I concur with old. I've had the best luck with the NGK that crosses to the Champion D21.

If memory serves it will be the NGK A6 or AB6.
 
I've used Champion D21's in all my engines that use that thread size. Case , Farmall , Oliver , Never had a problem ...
 
Autolite 386 or 3116 are also good.

There are many different plugs that will work. Most of the time it won't make a bit of difference which you choose, but in a few instances it can become important whether you choose a "hot" plug or a "cool" plug. A hot plug works better for puttering around and prevents fouling if the tractor burns a little oil. A cool plug is a better choice if you work the tractor hard and it tends to run hot.
 
Thanks everyone for the great response,will check at auto parts this week and see what s available,really appreciate all the great information,
 

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