Compatibile with: SHOCKWAVE, TSUNAMI, VOLCANO STX, TORNADO S30, VOLCANO S30, AFTERSHOCK 21, HURRICANE XL, AFTERSHOCK 3.0, AFTERSHOCK 3.5, BACKDRAFT 3.5, CALDERA 3.0, EARTHQUAKE 3.0, EARTHQUAKE 3.5, HURRICANE XP, LANDSLIDE 21, LANDSLIDE LT, MAELSTROM LT, MONSOON XP, SANDSTORM 21, SANDSTORM LT, TWISTER LT, TYPHOON XP, REACTOR RS 3.3, VOLCANO MX, VOLCANO SV, VOLCANO T2, VORTEX SS, TORNADO BB and more... Medium for club racing and sport use. Please refer to your instruction manual and make sure it's compatible.NOT AVAILABLE FOR INTERNATIONAL CUSTOMERS. Please note that the Pay Now button is ONLY available after winning a listed item. We respond within 24 hours of your request for information. If you are not satisfied with our product, you may return any item within 14 days after the date of receipt. The item "10x HSP Super Glow Plug Nitro RC Car #3 N3 70117 Hot 18 21 Engines Traxxas OS" is in sale since Wednesday, August 20, 2014. This item is in the category "Toys & Hobbies\Radio Control & Control Line\RC Model Vehicle Parts & Accs\Body Parts & Interior\Cars, Trucks & Motorcycles". The seller is "perfectdeal_us" and is located in Fremont, California. This item can be shipped to United States.