Traxxas 3232X Super Duty Long Glow Plug Traxxas glow plugs are the only plugs we recommend running in our engines Direct replacement in TRX 2.5, 2.5R, and 3.3 engines Also for use in TRX Pro .15 when running in temperatures that exceed 100 degrees (F), using a high nitro content, or running higher compression Use Traxxas stock and hop-up replacement parts to get the most out of you Traxxas RTR vehicles This product is made from high quality materials and designed for lasting performance This is for use on RC vehicles such as the Traxxas Revo 3.3; consult your user's manual for exact parts listings