GY6 50CC 39mm 139QMB Piston Kit

GY6 50CC 39mm 139QMB Piston Kit

This piston kit fits GY6 50cc scooters and motorcycles, 39mm.This kit includes the piston, ring, wrist pin, clip, as the photo shown.

Outter diameter of the piston 39mm,Over height 33mm,Piston Pin 13mm,Compression height 17.25mm. It's the standard size for the 139QMB engine.If you require bigger size of piston kits, please feel free to contact us.

Now Sonora Motors can supply various motorcycle parts, such as Crankshaft Crank Shaft, Clutch & Driven Pulley, Variator & Front Drive Pulley, Cylinder Kit, Starter Motor, etc.

It will fit Jonway YY50QT-3, Jonway YY50QT-5 4stroke, Jonway YY50QT-6 4stroke,Jonway YY50QT-10 4stroke, Jonway YY50QT-21 4stroke, Jonway YY50QT-28 4stroke,Jonway YY50QT-29, and many other Chinese brand scooters :Baotian,Benzhou,Longjia,Znen,Keeway,etc.

P/N:ST04077-0000

Contact us if you need more details on GY6 50CC Piston Kit. We are ready to answer your questions on packaging, logistics, certification or any other aspects about 139QMB Piston Kit、39mm Piston Kit. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Scooter Motorcycle Engine Part > Piston & Ring