Cart 0

Crankshaft Type-2 GY6 49cc QMB139 > Part # 151GRS238

  • $ 5999

Grand Rapids Scooter's Crankshaft Assembly, Type-2 for 50cc 4-stroke QMB139 engines. Has 22 tooth oil pump drive gear. 

Supported Models: Bintelli, Tao Tao, Peace Sports, Wolf, Schwinn, Puma, SYM, Alliance, Motorino, and Kymco.


  • Stroke: 41.4mm
  • Overall Length: 247mm
  • Thread Size (tapered side): M10x1.25
  • Thread Size (spline side): M12x1.25
  • Bearing Outer Diameter (tapered side): 42mm
  • Bearing Outer Diameter (spline side): 47mm
  • Number of Splines: 26
  • Number of Teeth (oil pump drive gear): 22

We Also Recommend