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GOKARTS USA

QMB139 69mm Valve Rebuild Kit PS-151-262

  • $46.79
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Logo 69mm Valve Assembly for 50cc 4-stroke QMB139. Includes intake and exhaust valves, inner and outer springs, valve washers, valve seals, valve keepers, and valve retainers.

  • Valve Length (intake & exhaust): 69mm
  • Shaft Diameter (intake & exhaust): 5mm
  • Intake Valve Diameter: 18.5mm
  • Exhaust Valve Diameter: 16mm