2Bros Parts

PISTON KIT 06-12 SX-F 250 KTM, FORGED WOSSNER 8645D400 80mm

$201.36

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Delivery to United States 5–8 business days

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Wossner forged piston kit for high-performance applications. Offers superior strength and optimized heat transfer. Features an elliptical design for a uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Manufactured in Germany for precision and durability. Bore Size: 80mm. Actual Bore: 79.96mm. Display (cm³): 527. Stroke (mm): 54.80. Clearance (mm): 0.04. Wossner Compression Ratio: 12.90:1. OEM Compression Ratio: 12.80:1. Dome Volume (cm³): 1.20. Compression Height (mm): 19.50. Lock Part Number: CW16. Pin Part Number: WP059. Ring Set Part Number: 800XDS. Part Number: 56-W4730+400.WO.

Specifications
SKU
56-W4730+400.WO
Brand
Wossner
Availability
In Stock (2)
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
255965
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit - High Performance and Durability

Elevate your engine's performance with this Wossner forged piston kit. Engineered for demanding applications, this piston offers superior strength and exceptional heat transfer capabilities, ensuring optimal performance and longevity. The advanced elliptical design guarantees a consistent bearing surface even under extreme heat, effectively reducing localized pressure and preventing piston failure.

Key Features:

  • Forged Construction: Provides enhanced strength and durability for high-performance engines.
  • Optimized Heat Transfer: Designed for efficient heat dissipation to cylinder walls, improving overall engine efficiency.
  • Elliptical Design: Ensures uniform bearing surface under thermal expansion, leading to even thrust load distribution and preventing premature wear.
  • German Engineering: Precision manufactured in Germany for uncompromising quality and reliability.

Specifications:

  • Bore Size: 80mm
  • Actual Bore: 79.96mm
  • Displacement (cm³): 527
  • Stroke (mm): 54.80
  • Clearance (mm): 0.04
  • Wossner Compression Ratio: 12.90:1
  • OEM Compression Ratio: 12.80:1
  • Dome Volume (cm³): 1.20
  • Compression Height (mm): 19.50
  • Lock Part Number: CW16
  • Pin Part Number: WP059
  • Ring Set Part Number: 800XDS
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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