GY6 50cc (139QMB) Non-Emissions Valve Cover

Non-Emissions Valve Cover for 50cc 4-Stroke Engines

This valve cover without emissions equipment is made for 50cc 4-stroke engines, with the QMB139 as the main match. It governs how air and gases move through the top of the engine, which affects power and fuel economy. It belongs to the GY6 50cc scooter parts range and may help restore proper engine operation when low compression or valve problems are involved. Please be aware that a valve cover gasket is not included with this part; you can find one among the related listings.

Signs It Needs Replacing

A ticking sound or evidence of burnt valves suggests the valve cover may need to be swapped out. Matching the cylinder head to your engine's specifications is key to keeping it running well.

Specifications

• Fits: Universal Parts QMB139 50cc 4-stroke GY6 engines (non-emissions valve cover)

Fitment

Fits:

• QMB139 50cc/49cc 4-stroke engine

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