Quick view Add to Cart O.S. #6 A3 Glow Plug Hot 71605300 $24.95 inc GST O.S. #6 A3 Glow Plug Hot Air The O.S. #6 (A3) glow plug is similar to the #8 plug only more economical. FEATURES: Hot heat range plug for most model engine applications. Works well in any two stroke engine from .10-size to .60 Thick, solid... Compare