NCY Racing Stator for 50cc 4-Stroke 139QMB Scooters COMPATIBILITY: BMS – Apache 50 4T, Heritage 50 4T Diamo – Classic 50 4T Lance – Charming 50 4T, GTR 50 4T Roketa – Bahama 50 4T, Maui 50 4T, Sicily 50 4T Tank – Urban 50 4T, Sporty 50 4T, Viaggio 50 4T Many Other 50cc 139QMB Based Engines **This will not work on the QJ models Light weight racing stator assembly for most GY6 engines. This is intended for race purposes and, in turn, holds NO parts warranty. Will not work on Kymco Mongoose 50/70. Will work on most GY6 50 engines with three wire output (Yellow, White, Blue/White) including Kymco Mongoose 90. **