Final Drive Gear

Final Drive Gear

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Part Number: 151-56



Final Drive Gear for 50cc 4-stroke QMB139 engines.

  • Number of Teeth: 51
  • Number of Splines: 19
  • Inner Diameter (splines peak to peak): 18mm
  • Thickness: 15.5mm

QMB139 50cc/49cc , Various unlisted makes/models

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Final Drive Shaft
Final Drive Shaft

Part #: 151-55  

  • Final Drive Shaft for 50cc 4-stroke QMB139 engines.
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