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Wossner  |  SKU: 56-W240+00A.WO
New arrival

PISTON KIT YZF WRF 250 3-RING, WOSSNER 8712DA 08-13 77mm

Available from Supplier — dispatched directly

This item is dispatched directly to you by our supplier. Supplier stock is separate from stock held at BTP.

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Regular price
£178.92

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Description

Wossner forged piston kit with a 77.00mm bore and 76.96mm diameter, designed for Yamaha YZ250F and WR250F models. This 3-ring piston is engineered for durability and high performance, featuring superior strength and design. Manufactured in Germany, it ensures optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse.

Features

  • Forged construction for superior strength
  • Optimized heat transfer for efficient combustion
  • Elliptical design for uniform load distribution
  • 3-ring piston design for durability
  • Manufactured in Germany

Specifications

  • Bore: 77.00mm
  • Diameter: 76.96mm
  • Display (cm³): 249
  • Stroke (mm): 53.60
  • Clearance (mm): 0.04
  • Wossner Compression Ratio: OEM
  • OEM Compression Ratio: 13.50:1
  • Dome Volume (cm³): -2.90
  • Compression Height (mm): 22.20

Cross-Reference OEM Part Numbers

  • Wossner Piston Yamaha YZ250F (PN# 8712DA)
  • Lock P/N: CW16
  • Pin P/N: WP059
  • Ring Set P/N: 770XAS-2
  • Rod P/N: P4005

Vehicle Fitments

  • Yamaha YZ250F (2008-2013)
  • Yamaha WR250F (2008-2013)