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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 May - Engine Parts

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...

QMB139 50cc 4-stroke Carburetor, 20mm Intake

Carburetor Type-2 for 50cc 4-stroke QMB...


Monthly Specials For May

Air Filter Assembly

Complete Air Filter Assembly for 50cc 4...

$34.99 $24.99Save: 29% off