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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

Oil Dip Stick

Oil Dip Stick for 50cc 4-stroke QMB139 ...

$5.49
QMB139 PAIR Style Cylinder Head

PAIR Style Cylinder Head for 50cc 4-str...

$39.99
Cylinder Head

Cylinder Head for 50cc 4-stroke QMB139 ...

$39.99
Cylinder Head Gasket Type-1

Various unlisted makes/models, QMB139 5...

$5.99
Cylinder Head Gasket Type-2

Cylinder Head Gasket Type-2 for 50cc 4-...

$5.99
Intake Manifold O-ring

Intake manifold O-ring Gasket for 50cc,...

$0.99

Monthly Specials For January

Air Filter Assembly

Complete Air Filter Assembly for 50cc 4...

$34.99 $24.99Save: 29% off