Which Spark Plug

[ajtimm]

Which spark plugs are you using in your 18hp Kohler Command engines?

I have been all over the owners and service manual for my engine and cannot find a recommended spark plug or heat range. Which plugs and gap are you guys using? Thanks!

 

[digger]

Which spark plugs are you using in your 18hp Kohler Command engines?

I have been all over the owners and service manual for my engine and cannot find a recommended spark plug or heat range. Which plugs and gap are you guys using? Thanks!

It came with Champion rv17yc, but you can cross it.

 

[ajtimm]

It came with Champion rv17yc, but you can cross it.

View attachment 153031

Thanks Digger!!!!

 

[bjames]

I think the 18hp Kohler Command takes RC12YC plugs. The 1864 manual calls for Cub Cadet 759-3336.

https://www.mtdparts.com/en_US/spark-plugs/spark-plug---rc12yc/759-3336.html