This is the O.S. #7 Medium Hot Glow Plug for 2-Stroke Engines. The O.S. #7 is good for most 2-stroke airplane, helicopter and car (except turbo head) engines.
- Slightly hotter heat range than the O.S. #8 plug.
- Newly developed to focus on easier running at low and medium speeds
- Ideal for helicopter engines with superior performance around hovering RPM range - critical for smooth and powerful 3D and F3C type flight.
- Offers stable idling, broad peak needle settings and punchy throttle response
- Also great all around plug for most 2-stroke airplane, helicopter and car (except turbo head) engines.
Includes: One O.S. #7 Medium Hot Glow Plug with gasket