OS Engines 71605300#6 A3 Glow Hot Plug FEATURES: Hot heat range plug for most model engine applications. Works well in any two stroke engine from .10-size to .60 INCLUDES: One OS #6 (formerly A3) glow plug One glow plug ring JAL 6/6/96 ir/jl other plug info updated tjt 032105 update jxs 4/14/09 INCLUDES: One OS #6 (formerly A3) glow plug One glow plug ring JAL 6/6/96 ir/jl other plug info updated tjt 032105 update jxs 4/14/09