The O.S. #8 glow plug is the most widely used O.S. glow plug.
Recommended for most current O.S. (and other brands of) 2-stroke R/C engines.
FEATURES: Medium heat range plug for most model engine applications.
Plug is medium length, without idle bar. For all 2 stroke engines.
INCLUDES: One glow plug and one brass washer
SPECS: Threads on the plug are 1/4-32.
COMMENTS: Other OS Glow Plugs include: R5 OSMG2694 Coolest
A5 OSMG2693 Med Cool
#8 OSMG2691 Med Hot
A3 OSMG2690 Hottest
Please vist http://www.osengines.com/accys/glowplugs.html
for more detailed information