Universal Parts QMB139 Cylinder Head - Emissions duro Order the left-side accent to

Order the left-side accent to create a matching pair

precision-machined from lightweight aluminum for improved power delivery and throttle response on your Yamaha Zuma 50 or Jog 50

Smooth Shifting: NCY Anti-Torsion Secondary Spring Seat

Add essential utility and classic style to your Genuine Buddy Kick 125i with the Prima Chrome Rear Rack

Universal Parts QMB139 Cylinder Head - Emissions duro Order the left-side accent toUniversal Parts PAIR Style (Emissions) 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. 39mm Bore Intake Port Diameter: 17mm Exhaust Port Diameter: 18mm Emission Control System: Pulsed Secondary Air Injection System(PAIR) QMB139 50cc 49cc , Various unlisted makes models