Transmission Upgrade Kit; 139QMB

Looking for transmission upgrade kit qmb139? ScootsUSA offers the best transmission upgrade kit qmb139 at great prices. Explore our catalog for top-quality parts and fast shipping!

This NCY transmission kit for most 139QMB/GY50 style 50 cc (4T) Chinese scooters is the highest-quality OEM replacement kit available anywhere, and that will allow your transmission to run smoother, longer, and more efficiently. You’ll never have rollers flatten out on you after 200 miles or have your drive face cut up your belt ever again.
Manufactured in Taiwan, these components are the best you can buy today, and pay for themselves in saved service bills over and over again.
Includes the following part numbers: 1200-1049, 1200-1056, 1200-1051 5G,
1200-1161, and 1200-1090.