PISTON KIT HARLEY 3.882" SET/2, WOSSNER K8857D040-2 DAVIDSON, ROAD
This Wossner piston kit is engineered for Harley-Davidson Twin Cam 88" engines modified to a Big Bore 103 cu. in. configuration. Featuring a 3.882" bore with a +0.015" oversize and a 10:1 domed compression ratio, the kit delivers enhanced structural integrity and heat dissipation. Manufactured in Germany, this forged piston kit includes two pistons, rings, clips, and pins for complete installation.
Features
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Forged high-performance pistons with skirt coating
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Designed for efficient heat transfer from combustion chamber to cylinder walls
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Elliptical design ensures uniform bearing surface under thermal expansion
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Reduces localised pressure and evenly distributes thrust loads
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Helps prevent piston collapse under extreme engine conditions
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Includes pistons, rings, clips, and pins
Specifications
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Bore size: 3.882"
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Oversize: +0.015"
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Compression ratio: 10:1
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Dome type: Domed
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Quantity: Kit includes 2 pistons
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Country of manufacture: Germany
Cross-Reference OEM Part Numbers
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Wossner K8857D040-2
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56-W9967.040.WO
Vehicle Fitments
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Harley-Davidson Twin Cam 88" Big Bore (103 cu. in.) 1999–2012