JD 212 spark plug

[L. Dean]

I bought new spark plug which is suppose to be the right one but it is too small, it is 14 mm the old one is 18 mm. does anyone know what the correct plug for the kolher K301AQS. it is a JD 212 made 1980.

Thanks,
Larry

 

[Anonymous-0]

Champion H10C is the correct plug.

 

[joe csuti]

Plug said by chuck is correct plug for eng,but is a 14mm,if tractor/eng bought used,previous owner may have stripped plug hole & retapped for 18mm,you have several options,goto an auto parts store & see if they have heat range chart for 14 & 18mm plugs & get an 18 in correct heat range,have a heli coil for 14mm plug installed in head,buy a used head on ebay.

 

[L. Dean]

Thanks for the response guys.

 

[Kentb of SWMO]

Try a Champion D-16. Either that or find a good used head so the correct Champion H-10C can be used. Gap at .030 inches.

Kent