Wossner Piston Kit 8116DB is a +0.01 oversize forged piston engineered for Yamaha YZ125 models from 1994 to 1996, featuring a 54.01mm bore. Manufactured in Germany, this piston provides exceptional strength and efficient heat management. Its elliptical profile supports uniform load distribution during heat expansion, reducing localised stress and improving overall engine reliability under demanding conditions.

Features

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  Forged construction ensures durability and strength in high-stress applications

  
  


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  Elliptical piston design evenly distributes thrust loads during thermal expansion

  
  


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  Facilitates efficient heat transfer to cylinder walls

  
  


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  Manufactured in Germany with precision

  
  

Specifications

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  Bore: 54.01 mm

  
  


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  Actual Piston Diameter: 53.95 mm

  
  


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  Stroke: 54.50 mm

  
  


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  Displacement: 124 cm³

  
  


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  Clearance: 0.06 mm

  
  


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  Compression Height: 28.00 mm

  
  


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  Wossner Compression Ratio: 2-stroke

  
  


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  OEM Compression Ratio: 2-stroke

  
  

Cross-Reference OEM Part Numbers

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  Wossner Piston: 8116DB

  
  


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  Lock: CW16

  
  


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  Pin: WP036

  
  


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  Ring Set: RSB5400

  
  


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  Rod: P2047

  
  


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  Internal Part No: 56-W647+00B.WO

  
  

Vehicle Fitments

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  1994 Yamaha YZ125

  
  


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  1995 Yamaha YZ125

  
  


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  1996 Yamaha YZ125