This is the OS Type F 4-Stroke Glow Plug. The OS Max #F Glow Plug is designed epecially for OS Max and other brand Four-Stroke R/C Engines.
- Specially shielded long-reach plug for use in O.S. (and other) four stroke engines. Shield keeps plug hot for lower idle RPM
- For use with fuels with a 5-15% nitro content
One #F Glow Plug (without idle bar)
One brass glow plug gasket