Complete QMB139 Cylinder Head - Emissions

In stock
img-qind.JPGUniversal 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.

  • Intake Port Diameter: 17mm
  • Exhaust Port Diameter: 17mm
  • Valve Length: 69mm
  • Emission Control System: Pulsed Secondary Air Injection System(PAIR)
Write Your Own Review
You're reviewing:Complete QMB139 Cylinder Head - Emissions
Ask Your Question
Jot us a note and we’ll get back to you as quickly as possible.
Contact Us