4T scooter parts
Engine parts for Chinese four-stroke scooters (GY6 family). The section is divided by displacement: 4T scooter 50–80cc (engines marked 139QMB) and 4T scooter 125–150cc (for example, the 157QMJ, with a 57 mm cylinder bore).
What you'll find here
- Cylinder and piston group: complete cylinders (39, 44, 47, 52 and 57 mm), piston rings, 100cc performance cylinders.
- Valve train and cylinder head: valves, rocker arms, valve springs and keepers, timing chains, tensioners and chain guides.
- Variator: front and rear variators, rollers, sliders, clutch.
- Carburetors and rebuild kits, air filters, intake pipes.
- Electrics: stators, coils, charging relays, starter motors and bendix drives.
- Transmission, oil seals, gaskets, cables, rotor pullers, complete engines.
When choosing parts, the engine size and version matter: short or long variator (and the matching gearbox shaft), filter type, number of stator coils. If in doubt, tell us your scooter model and engine marking.
Can't find the part you need in our catalog? Give us a call — we'll find an equivalent or order it for you.
Front variator for 50–80 cc 4-stroke scooters (KOSO).
Complete scooter engine for 50–80 cc 4-stroke scooters (Mototech).
Complete carburetor for 50–80 cc 4-stroke scooters.
Ignition coil for 50–80 cc 4-stroke scooters.
Piston rings for 50–80 cc 4-stroke scooters.
Engine gasket set for 50–80 cc 4-stroke scooters (TMMP).
Variator for 125–150 cc 4-stroke scooters.
Generator for 125–150 cc 4-stroke scooters.
Cylinder head for 125–150 cc 4-stroke scooters.
Engine crankcase for 125–150 cc 4-stroke scooters.
Charging regulator for 125 cc 4-stroke scooters.
Puller for 50–150 cc 4-stroke scooters.
Starter drive (Bendix) for 50–80 cc 4-stroke scooters.
Switch unit for 4T-50 scooters with a front disc brake (units without levers)
Gearbox shaft for 50–80 cc 4-stroke scooters.
Gearbox shaft for 50–80 cc 4-stroke scooters.
Camshaft sprocket for 50–80 cc 4-stroke scooters.
Piston rings for 50–80 cc 4-stroke scooters.
CDI unit for 50–80 cc 4-stroke scooters.
CDI unit for 50–80 cc 4-stroke scooters (TATA).
CDI unit for 50–80 cc 4-stroke scooters.
Air filter hose for 50–80 cc 4-stroke scooters.
Plastic fairing part for 50–80 cc 4-stroke scooters.





















