PISTON KIT 98-02 KTM380 79.00, WOSSNER 8223D100 FORGED

This Wossner piston kit with a 79.00mm bore (+1.00mm oversize, actual size 78.94mm) is designed for KTM 380 models—EGS, EXC, and SX—from 1998 to 2002. Forged in Germany, it is built for strength, consistent thermal transfer, and long-term reliability in high-performance two-stroke engines.

Features

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  High-strength forged piston construction for maximum durability

  
  


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  Designed to optimise heat dissipation from the combustion chamber to the cylinder wall

  
  


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  Elliptical design provides a uniform bearing surface, reducing localised pressure and preventing piston collapse

  
  


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  Manufactured in Germany with precision engineering for reliable performance

  
  

Specifications

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  Bore size: 79.00 mm

  
  


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  Actual piston size: 78.94 mm

  
  


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  Display (cm³): 368

  
  


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  Stroke (mm): 77.00

  
  


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  Clearance (mm): 0.06

  
  


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  Compression ratio: 2-stroke (Wossner and OEM)

  
  


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  Compression height (mm): 27.00

  
  

Vehicle Fitments

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  1998–2002 KTM EGS 380

  
  


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  1998–2002 KTM EXC 380

  
  


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  1998–2002 KTM SX 380

  
  

Included Components

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  Piston: Wossner PN# 8223D100

  
  


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  Lock: PN# CW18

  
  


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  Pin: PN# WP039

  
  


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  Ring Set: PN# RSC7900