50cc PAIR Style Valve Cover Gasket QMB139


Valve Cover Gasket for 50cc 4-stroke QMB139 engines.

Valve Cover Gasket

QMB139 50cc/49cc , Various unlisted makes/models

3 in stock


Valve Cover Gasket PAIR Style for 50cc 4-stroke QMB139 engines.
PAIR is an acronym for Pulsed Secondary Air Injection System.

It is an emissions control system used to lower HC and CO emissions.

It works by allowing air into the exhaust flow.


Additional information

Weight .6 lbs
Dimensions 4 × 4 × 4 in


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