2Bros Parts

PISTON KIT 0-09 KTM520/525 100, WOSSNER 8583DB FORGED

$243.25

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Delivery to United States 5–8 business days

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Wossner forged piston kit featuring superior strength and performance. Engineered for optimal heat transfer from the combustion chamber to cylinder walls. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany. Features forged construction for enhanced durability, optimized heat transfer for improved performance, and an elliptical design that prevents localized pressure and piston collapse. This kit has an OEM compression ratio for direct replacement. Specifications: Bore: 99.97 mm, Piston Size: 100.01 mm, Displacement: 449 cm³, Stroke: 68.00 mm, Clearance: 0.05 mm, Wossner Compression Ratio: OEM, OEM Compression Ratio: 12.00:1, Dome Volume: +0.80 cm³, Compression Height: 24.50 mm. Cross-Reference OEM Part Numbers: Lock: CW20, Pin: WP038, Ring Set: 1000ADS-2.

Specifications
SKU
56-W024+00B.WO
Brand
Wossner
Availability
In Stock (2)
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
254298
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit for KTM 520/525 (0-09) 100mm

Enhance your motorcycle's performance and durability with this premium Wossner forged piston kit. Engineered in Germany, this piston is designed for superior strength and optimal heat transfer, ensuring reliable operation under demanding conditions. The advanced elliptical design actively prevents localized pressure and piston collapse by distributing thrust loads evenly, even under extreme heat expansion. This results in a more uniform bearing surface and extended component life.

Key Features:

  • Forged construction for exceptional strength and longevity.
  • Engineered for optimized heat transfer from the combustion chamber to cylinder walls.
  • Elliptical design ensures uniform bearing surface and prevents piston collapse.
  • Distributes thrust loads evenly for reduced wear and improved reliability.
  • Maintains OEM compression ratio for a direct replacement fit.

Specifications:

  • Bore: 99.97 mm
  • Piston Size: 100.01 mm
  • Displacement: 449 cm³
  • Stroke: 68.00 mm
  • Clearance: 0.05 mm
  • Wossner Compression Ratio: OEM
  • OEM Compression Ratio: 12.00:1
  • Dome Volume: +0.80 cm³
  • Compression Height: 24.50 mm

Included Components:

  • Lock: CW20
  • Pin: WP038
  • Ring Set: 1000ADS-2
Before you buy

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Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

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Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

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