Quick view Add to Cart O.S. #8 Glow Plug Long Medium Air/Car 71608001 $52.90 inc GST O.S. #8 Glow Plug Long Medium Air/Car 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... Compare