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Wossner  |  SKU: 56-W214.B.WO
New arrival

PISTON KIT 05-18 KTM 250 66.40, WOSSNER PISTON KIT 8169DB

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
£141.82

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Description

Wossner forged piston kit designed for KTM SX250 (2005-2018), EXC250 (2006-2018), Freeride 250R (2014-2015), Husqvarna TC250 (2014-2015), and Betamotor RR250 (2013-2015) models. Engineered for superior strength and optimal heat transfer, these pistons feature an elliptical design to ensure uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Includes a hard Teflon skirt coating for an optimal fit and improved conformability to the cylinder bore.

Features

  • Forged piston for increased strength and durability
  • Optimized heat transfer for efficient combustion chamber performance
  • Elliptical design for even thrust load distribution and reduced piston collapse
  • Hard Teflon skirt coating for improved fit and wear resistance

Specifications

  • Bore Size: 66.41mm
  • Actual Bore Diameter: 66.35mm
  • Displacement: 249 cm³
  • Stroke: 72.00mm
  • Clearance: 0.06mm
  • Wossner Compression Ratio: 2-stroke
  • OEM Compression Ratio: 2-stroke
  • Compression Height: 38.00mm
  • Lock Part Number: CW18
  • Pin Part Number: WP033
  • Ring Set Part Number: RSB6640 x 2
  • Rod Part Number: P2023

Cross-Reference OEM Part Numbers

  • 54830007300 II

Vehicle Fitments

  • KTM SX250 (2005-2018)
  • KTM EXC250 (2006-2018)
  • KTM Freeride 250R (2014-2015)
  • Husqvarna TC250 (2014-2015)
  • Betamotor RR250 (2013-2015)