Hot Racing RVO1100XH Powerup Bi-Directional Clutch Kit - Traxxas Made by Hot Racing; Hot Racing is a United States based company; parts are sourced from Chinese producers All Hot Racing upgrade parts are direct replacements for stock components; additional parts are not required Hot Racing part number RVO1100XH; UPC 083745237856 This item works with: Traxxas Jato 2.5 and Jato 3.3, Nitro 4-tec, Nitro Rustler, Nitro Stampede, Revo 3.3 5309, T-Maxx 3.3 4909