Universal Parts Complete QMB139 Cylinder Head – Emissions

$44.99

In stock

  • Intake Port Diameter: 17mm
  • Exhaust Port Diameter: 17mm
  • Valve Length: 69mm
  • Emission Control System: Pulsed Secondary Air Injection System(PAIR)
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SKU: 151-240 Category:

LogoUniversal Parts Completely Assembled PAIR Style Cylinder Head 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 2.4 lbs

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Universal Parts Complete QMB139 Cylinder Head - Emissions