This is the Traxxas Super Duty Long Glowplug. FEATURES: Ideal for all Traxxas engines including the 2.5, 2.5R and 3.3 engines Suited for the varied throttle range of off-road racing Medium heat range INCLUDES: One Traxxas Medium Heat Range Super Duty Long Glowplug with gasket REQUIRES: Plug wrench (HCAP2550) for installing in cylinder head Glow Fuel with 10%-20% nitro content jxs 7/17/07 ir/jxs