2Bros Parts

PISTON KIT 03-05 HUS 450 97.00, 8578DB WOSSNER HUSQVARNA

$229.39

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Delivery to United States 5–8 business days

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Wossner forged piston kit designed for superior strength and performance. Engineered for optimal heat transfer from the combustion chamber to cylinder walls. The elliptical design ensures 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, elliptical design that prevents localized pressure and piston collapse, and OEM compression ratio for direct replacement. Specifications include a bore of 96.95 mm, piston size of 97.01 mm, displacement of 449 cm³, stroke of 60.80 mm, clearance of 0.06 mm, Wossner compression ratio of OEM, OEM compression ratio of 12.00:1, dome volume of -6.50 cm³, and compression height of 24.50 mm. Cross-reference OEM part numbers include lock CW20, pin WP073, and ring set 970XSY.

Specifications
SKU
56-W023.B
Brand
Wossner
Availability
In Stock (2)

Fitments (9)

MakeModelYear
HUSQVARNASMR 4502003
HUSQVARNASMR 4502004
HUSQVARNASMR 4502005
HUSQVARNATC 4502003
HUSQVARNATC 4502004
HUSQVARNATC 4502005
HUSQVARNATE 4502003
HUSQVARNATE 4502004
HUSQVARNATE 4502005
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
254294
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit

Elevate your engine's performance and durability with this Wossner forged piston kit. Engineered for superior strength and optimal heat transfer, this kit is designed to withstand the demands of high-performance riding. The advanced elliptical design ensures uniform bearing surface even under extreme heat expansion, effectively preventing localized pressure and distributing thrust loads evenly to avoid piston collapse.

Key Features:

  • Forged construction for exceptional strength and longevity.
  • Optimized heat transfer design for improved engine efficiency and performance.
  • Elliptical piston shape to prevent localized pressure and guarantee smooth operation under varying temperatures.
  • Maintains OEM compression ratio, ensuring a direct fit and predictable engine characteristics.
  • Manufactured in Germany, adhering to stringent quality standards.

Technical Specifications:

  • Bore: 96.95 mm
  • Piston Size: 97.01 mm
  • Displacement: 449 cm³
  • Stroke: 60.80 mm
  • Piston Clearance: 0.06 mm
  • Compression Ratio (Wossner): OEM
  • Compression Ratio (OEM): 12.00:1
  • Dome Volume: -6.50 cm³
  • Compression Height: 24.50 mm

Included Components:

  • Lock: CW20
  • Pin: WP073
  • Ring Set: 970XSY
Before you buy

QUESTIONS? JUST ASK

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

Check the fitment table on this page against your make, model and year. Not sure? Call or email us 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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