O.S. Engine - Glow Plug #P3 (Turbo) Ultra Hot   [OSMG2699]

This is actually the P3 Glow Plug for use into the OS Max .21 VZ-V Spec and a lot of
other .18 -.28 cu in (2.9 - 4.6 cc) turbo head rushing engines.

QUALITIES:

Ultra Hot Type Plug, designed for reliable low rate and much more torque
at acceleration, suitable for 20percent nitro gas
Well suited for novice motorists, enables effortless begins and better idling


SPECS:

Overall Length: 17mm (.67")
Thread size: M8x.75mm


COMMENTARY:

This radiance plug differs from traditional radiance plug. It really is
built to fit the inner head of machines with a turbo-type cylinder
head design

How to pick the proper Glow Plug? Please reference these website link.
http://www.osengines.com/accys/choosing-glowplugs.html