PISTON KIT HARLEY 3.935 SET/2, WOSSNER K8594D475-2 DAVIDSON

The Wossner K8594D475-2 piston kit is a forged piston set specifically engineered for Harley Davidson Twin Cam engines. Featuring a +4.75mm oversize bore (3.935") and a flat top design, these pistons are built to withstand high thermal and mechanical loads. Manufactured in Germany, the kit includes all necessary installation components, ensuring durability and consistent performance.

Features

• Forged high-performance pistons with skirt coating

• Elliptical design for balanced heat expansion and load distribution

• Efficient heat transfer from combustion chamber to cylinder walls

• Flat top pistons with 8.5:1 compression ratio

• Includes rings, clips, and pins

Specifications

• Bore size: 3.935" (+0.187", +4.75mm)

• Compression ratio: 8.5:1

• Quantity: 2 pistons per kit

• Made in Germany

Cross-Reference OEM Part Numbers

• Part No. 56-W9865.475.WO

• Ring Set Part No. 1000XSY

Vehicle Fitments

• Harley Davidson 1453cc Twin Cam 1999–2009

• Harley Davidson 1593cc Twin Cam 1999–2009

• Twin Cam 88 (88 cu. in.) 1999–2006