- QMB139 Replacement Rocker Arm assembly for GY6, 139QMB/QMA China 50cc 4T by 101 Octane Scooter Parts
Complete rocker mechanism including shaft and valve adjuster for Chinese-built 4-stroke 139QMB/QMA 50cc cylinder heads. Changing the complete unit makes more sense than the individual parts, as damaged parts can affect other areas. Also saves time and effort.
Complete rocker mechanism including shaft and valve adjuster for Chinese-built 4-stroke 139QMB/QMA 50cc cylinder heads. Changing the complete unit makes more sense than the individual parts, as damaged parts can affect other areas. Also saves time and effort.