OS Engines 11860 18CV-RX(S) ABC 11J Roto Engine FEATURES: Larger displacement and more power in a .15 size crankcase Short shaft crankshaft for use on T-Maxx and Associated vehicles INCLUDES: One O.S. Max .18CV-RX(S) engine with, 11J carb, pull starter, #8 glow plug, air filter assembly with two elements, mounting spacers REQUIRES: Glow fuel for vehicles with 5%-30% nitro methane and no less than 16% lubricant content