Originally Posted by houston

This is an O'Donnell 87T Medium Heat High Nitro Turbo Glow Plug.

FEATURES: Chrome finish turbo plug designed for 1/8 scale vehicles
Medium heat range for 25% and higher nitro fuels

INCLUDES: One #87T Turbo Glow Plug

COMMENTS: #77T (ODOG0477) for 1/10 scale on-road racing
#97T (ODOG0497) for 1/8 scale off-road racing



87t is in between the 97t and 99t