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Engine Parts

Stock parts for 49cc/50cc 4-stroke QMB139 engines. This engine is the most popular 50cc 4-stroke engine used in Chinese scooters.

New Products For January - Engine Parts

Rocker Arm Intake Valve

Camshaft Rocker Arm Sleeve for 50cc 4-s...

Rocker Arm

Rocker Arm for 50cc 4-stroke QMB139 eng...

Adjustment Screw and Nut

Camshaft Adjustment Screw and Nut Set f...


Camshaft for 50cc 4-stroke QMB139 engin...

Rocker Arm Exhaust Sleeve

QMB139 Camshaft Rocker Arm Exhaust Slee...

QMB139 50cc 4-stroke Carburetor, Type-1

Carburetor Type-1 for 50cc 4-stroke QMB...


Monthly Specials For January

Standard CVT Belt 669-18-30

Stock CVT Drive Belt size 669-18-30 for...

$14.99 $12.00Save: 20% off
Air Filter Assembly

Complete Air Filter Assembly for 50cc 4...

$34.99 $24.99Save: 29% off