The RP6 glow plug from OS Engines is a medium heat range plug. It is suitable for most .12-.21 on-road racing turbo head engines, using upo to 20% nitro content fuel.


The RP6 glow plug from OS Engines is a medium heat range plug. It is suitable for most .12-.21 on-road racing turbo head engines, using upo to 20% nitro content fuel.

