Glow plugs nitro rc compatible for - 3.3, , VOLCANO , S30, VOLCANO S30, 21, HURRICANE XL, 3.0, 3.5, BACKDRAFT 3.5, CALDERA 3.0, EARTHQUAKE 3.0, EARTHQUAKE 3.5, HURRICANE XP, LANDSLIDE 21, LANDSLIDE , , MONSOON XP, SANDSTORM 21, SANDSTORM , TWISTER , TYPHOON XP, REACTOR 3.3, VOLCANO MX, VOLCANO SV, VOLCANO T2, , Glow plug igniter:Hot 70117 / Super Spark Glow Plug N4 for RC Nitro Engines Car Truck RC glow plugs longer lasting Element, For 4c Engines 5% - 40% Nitro Fuels. Improves idle and transition , Longer lasting element Color: Silver Material: metal Package Contents: 4pcs Hot Glow Plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.