PISTON KIT 92-98 WR200 73.00, WOSSNER 8070D700 YAMAHA DIRT

Wossner Forged Piston Kit 73.00mm Bore – Yamaha DT200R / WR200

This Wossner forged piston kit is made for Yamaha DT200R (1988–1991) and WR200 (1992–1998) models, with a bore size of 73.00 mm and a piston diameter of 72.94 mm (+7.00 mm oversize). Designed for extreme oversize applications in 2-stroke engines, this forged piston offers robust structural integrity and optimised thermal dynamics. The elliptical design ensures even thrust load distribution, helping to prevent piston collapse during high-temperature operation. Precision-made in Germany.

Features

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  Forged piston construction for maximum durability

  
  


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  High-efficiency heat transfer from combustion chamber to cylinder walls

  
  


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  Elliptical shape for uniform bearing surface and reduced localised pressure

  
  


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  German engineering for consistent quality and precision

  
  

Specifications

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  Bore Size: 73.00 mm

  
  


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  Piston Diameter: 72.94 mm

  
  


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  Engine Displacement: 195 cm³

  
  


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  Stroke: 57.00 mm

  
  


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  Clearance: 0.06 mm

  
  


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  Compression Height: 29.90 mm

  
  


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  Compression Ratio: 2-stroke (Wossner and OEM)

  
  

Cross-Reference Wossner Part Numbers

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  Piston Kit: 8070D300

  
  


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  Lock: CW16

  
  


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  Pin: WP027

  
  


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  Ring Set: RSB7300 x 2

  
  

Vehicle Fitments

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  Yamaha DT200R (1988–1991)

  
  


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  Yamaha WR200 (1992–1998)