PISTON KIT HARLEY 3.501″ SET/2, WOSSNER K8618DA-2 DAVIDSON, ROAD

This standard bore piston kit by Wossner is engineered for Harley Davidson 1200 and 1100 EVO Sportster models. With a 3.501″ bore and domed piston design, it delivers a compression ratio of 9.5:1, offering durable performance through precision forging and advanced thermal handling characteristics.

Features

• Forged high-performance pistons (2 pcs), skirt-coated for reduced friction

• Designed for optimal heat transfer from combustion chamber to cylinder walls

• Elliptical piston geometry ensures uniform pressure distribution under heat expansion

• Domed piston design with 9.5:1 compression ratio

• Manufactured in Germany

• Includes rings, clips, and pins

Specifications

• Bore size: 3.501″

• Compression ratio: 9.5:1

• Piston type: Forged, skirt-coated, domed

• Quantity: 2 pistons per kit

• Wossner Part Number: K8618DA-2

• Alternate Part No: 56-W9954.000.WO

Cross-Reference OEM Part Numbers

• Not specified beyond kit and ring inclusions

Vehicle Fitments

• Harley Davidson 1200 EVO Sportster (73 cu. in), years 1988–2003

• Harley Davidson 1100 EVO Sportster, years 1986–1987