O.S. Engine - Glow Plug #RP6 (Turbo) Medium  [OSMG2703]

QUALITIES:

• T-series radiance plugs are perfect for rushing car engines that induce high RPM
• For .12, .15 and .21 size turbo mind on-road race engines
• Ideal plug for cool outside temperatures

REMARKS:

This radiance plug varies from old-fashioned glow plug. Its made to fit the inner head of engines with a turbo-type cylinder mind design

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