Universal Parts 47mm QMB139 Complete Non Emissions Cylinder Head

LogoUniversal Parts 50cc QMB139 4-stroke 47mm, Non Emissions Cylinder Head with 64mm Valves for use with 72cc Big Bore Kit!

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SKU: 151-259 Category:


  • For Use with 72cc Big Bore Kit
  • Valve Length: 64mm
  • Overall Height: 59.5mm
  • Intake Port Diameter: 17mm
  • Exhaust Port Diameter: 18mm
  • Intake Bolt Hole Spacing: 44.5mm
  • Exhaust Bolt Hole Spacing: 50mm

Additional information

Weight 2.5 lbs