PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DA A

$331.28
1

Wossner forged piston kit with a 90.00mm bore. This piston is a standard replacement for GM Speedway 499cc engines. Manufactured in Germany, the piston features a forged construction for maximum strength and durability, and an elliptical profile for uniform bearing surface under thermal expansion. Specifications include a bore of 89.92mm, display volume of 499 cm³, stroke of 78.50mm, clearance of 0.08mm, dome volume of +5.60 cm³, and compression height of 22.00mm. Cross-reference OEM part numbers include 56-W9841.A and 8811DA. Pin part number: WP174. Ring set part number: 900ADS-2. Weight: 370g.

Specifications
SKU
56-W9841.A
Brand
Wossner
Availability
In Stock (1)

Fitments (44)

MakeModelYear
GMSPEEDWAY 4992000
GMSPEEDWAY 4992001
GMSPEEDWAY 4992002
GMSPEEDWAY 4992003
GMSPEEDWAY 4992004
GMSPEEDWAY 4992005
GMSPEEDWAY 4992006
GMSPEEDWAY 4992007
GMSPEEDWAY 4992008
GMSPEEDWAY 4992009
GMSPEEDWAY 4992010
GMSPEEDWAY 4992011
GMSPEEDWAY 4992012
GMSPEEDWAY 4992013
GMSPEEDWAY 4992014
GMSPEEDWAY 4992015
GMSPEEDWAY 4992016
GMSPEEDWAY 4992017
GMSPEEDWAY 5001990
GMSPEEDWAY 5001991
GMSPEEDWAY 5001992
GMSPEEDWAY 5001993
GMSPEEDWAY 5001994
GMSPEEDWAY 5001995
GMSPEEDWAY 5001996
GMSPEEDWAY 5001997
GMSPEEDWAY 5001998
GMSPEEDWAY 5001999
GMSPEEDWAY 5002000
GMSPEEDWAY 5002001
GMSPEEDWAY 5002002
GMSPEEDWAY 5002003
GMSPEEDWAY 5002004
GMSPEEDWAY 5002005
GMSPEEDWAY 5002006
GMSPEEDWAY 5002007
GMSPEEDWAY 5002008
GMSPEEDWAY 5002009
GMSPEEDWAY 5002010
GMSPEEDWAY 5002011
GMSPEEDWAY 5002012
GMSPEEDWAY 5002013
GMSPEEDWAY 5002014
GMSPEEDWAY 5002015
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
90.00mm
Variant Id
258885
Shipping OptionsShown at checkout
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit 90.00mm - GM Speedway

Upgrade your GM Speedway 499cc engine with this high-performance forged piston kit from Wossner. Engineered in Germany, this piston is designed as a direct replacement, ensuring maximum strength and efficient heat dissipation for reliable performance. The advanced elliptical profile helps to distribute loads evenly, even under extreme heat, minimizing stress and preventing premature failure. This kit is built for durability and optimal combustion efficiency.

Key Features:

  • Forged construction for superior strength and longevity.
  • Optimized design for efficient heat transfer from the combustion chamber to the cylinder walls.
  • Elliptical piston profile ensures a consistent bearing surface during thermal expansion.
  • Promotes even distribution of thrust loads, reducing localized pressure points.
  • Precision manufactured in Germany to exacting standards.

Specifications:

  • Standard Bore Size: 90.00mm
  • Actual Piston Diameter: 89.92mm
  • Engine Displacement: 499 cm³
  • Stroke: 78.50mm
  • Piston Clearance: 0.08mm
  • Dome Volume: +5.60 cm³
  • Compression Height: 22.00mm

Included Components:

  • Piston
  • Pin Part Number: WP174
  • Ring Set Part Number: 900ADS-2

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