2Bros Parts

PISTON KIT 03-04 GAS GAS 450, WOSSNER 8585DB FORGED

$243.02

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Delivery to United States 5–8 business days

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Wossner forged piston kit with 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, and an elliptical design that prevents localized pressure and piston collapse. OEM compression ratio for direct replacement. Specifications include a bore of 94.96 mm, piston size of 95.01 mm, displacement of 449 cm³, stroke of 62.60 mm, clearance of 0.05 mm, Wossner compression ratio of OEM, dome volume of -6.40 cm³, and compression height of 25.50 mm. Cross-reference OEM part numbers: Lock CW20, Pin WP038, Ring Set 950XSY.

Specifications
SKU
56-W025.WO.B
Brand
Wossner
Availability
In Stock (2)

Fitments (6)

MakeModelYear
GAS-GASEC 4502003
GAS-GASEC 4502004
GAS-GASFSE 4502003
GAS-GASFSE 4502004
GAS-GASHP 4502003
GAS-GASHP 4502004
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
254302
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit

This Wossner forged piston kit is engineered for superior strength and performance. Its advanced design ensures optimal heat transfer from the combustion chamber to the cylinder walls. The elliptical shape of the piston provides a uniform bearing surface even under heat expansion, effectively reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany.

Key Features

  • Forged construction for enhanced durability and longevity
  • Optimized heat transfer for improved engine performance
  • Elliptical design minimizes localized pressure and prevents piston collapse
  • Maintains OEM compression ratio for a direct replacement

Specifications

  • Bore: 94.96 mm
  • Piston Size: 95.01 mm
  • Displacement: 449 cm³
  • Stroke: 62.60 mm
  • Clearance: 0.05 mm
  • Dome Volume: -6.40 cm³
  • Compression Height: 25.50 mm

Included Components

  • Lock: CW20
  • Pin: WP038
  • Ring Set: 950XSY
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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