2Bros Parts

PISTON 85-88 KTM250 GS 66.50, 8025DA FORGED WOSSNER KIT

$160.89Only 1 left

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Wossner forged piston kit 8025DA with 66.50mm bore size. Features high-strength forged construction for durability and optimized heat transfer for improved engine performance. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany for high-quality performance. Specifications include an actual diameter of 66.44mm, displacement of 229 cm³, stroke of 71.70mm, clearance of 0.06mm, compression ratio of 2-Stroke, OEM compression ratio of 2-Stroke, and compression height of 29.70mm. Included components: Piston Wossner 8025DA, Ring Set RSB6650, C-Clip Set CW18, and Pin WP033.

Specifications
SKU
56-W006+00A.WO
Brand
Wossner
Availability
In Stock (1)
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
254203
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit

Experience superior strength and durability with this Wossner forged piston kit. Engineered for optimal heat transfer from the combustion chamber to the cylinder walls, this piston features an elliptical design that ensures a uniform bearing surface under heat expansion. This reduces localized pressure and evenly distributes thrust loads, effectively preventing piston collapse. Precision manufactured in Germany for high-quality performance.

Key Features:

  • High-strength forged construction for maximum durability.
  • Optimized heat transfer for improved engine performance and longevity.
  • Elliptical design promotes even load distribution and prevents piston collapse.
  • Precision manufacturing standards from Germany.

Specifications:

  • Bore Size: 66.50mm
  • Actual Diameter: 66.44mm
  • Displacement: 229 cm³
  • Stroke: 71.70mm
  • Clearance: 0.06mm
  • Compression Ratio: 2-Stroke
  • Compression Height: 29.70mm

Included Components:

  • Piston: Wossner 8025DA
  • Ring Set: RSB6650
  • C-Clip Set: CW18
  • Pin: WP033
Before you buy

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Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Call or email us with your make, model and year and we will check it for you before you order.

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.

More answers in our FAQ.

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