The O.S. #6 (A3) glow plug is similiar to the #8 plug only more economical. 

FEATURES:  

Hot heat range plug for most model engine applications. Works well in any two stroke 

engine from .10-size to .60 Thick, solid platinum coil resists meltdowns and premature 

failure Coil holds sufficient heat for a smooth idle Finest glow plug in the economy price 

range No Idle Bar 

INCLUDES:  

One OS #6 (formerly A3) glow plug One glow plug ring