Hoca Replacement QMB139 Cylinder Head Valves

In stock
img-qind.JPGHoca Replacement QMB139 Valve Set for the 50mm and 52mm Hoca Cylinder Heads used on 50cc QMB139 4-stroke engines and engine based vehicles.

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  • Intake Valve Diameter: 21.5mm
  • Exhaust Valve Diameter: 19mm
  • Intake & Exhaust Valve Overall Length: 62.3mm
  • Intake & Exhaust Valve Stem Diameter: 5mm
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