The OS Max #F Glow Plug is Designed Especially for OS Max (and other brands of) Four-Stroke Engines.
FEATURES:
Specially shielded long-reach plug for use in four stroke engines.
Shield keeps plug hot for lower idle RPM.
For use with fuels with a 5-15% nitro content
INCLUDES:
One #F Glow Plug (without idle bar)
One brass glow plug gasket.