Piston Kit Harley 3.778 SET/2, Wossner K8595D075-2 Davidson

The Wossner K8595D075-2 piston kit is a forged high-performance set designed for Harley Davidson Twin Cam engines. With a +0.75mm oversize bore (3.778") and a domed piston design, this kit offers a higher compression ratio of 10:1, ideal for performance-focused builds. Manufactured in Germany, the kit includes all essential components for a precise and reliable installation.

Features

• Forged high-performance pistons with skirt coating

• Elliptical design for uniform load distribution and thermal expansion

• Enhanced heat transfer from combustion chamber to cylinder walls

• Domed pistons with 10:1 compression ratio

• Includes rings, clips, and pins

Specifications

• Bore size: 3.778" (+0.030", +0.75mm)

• Compression ratio: 10:1

• Quantity: 2 pistons per kit

• Made in Germany

Cross-Reference OEM Part Numbers

• Part No. 56-W9866.075.WO

• Ring Set Part No. 960XSY

Vehicle Fitments

• Harley Davidson 1453cc Twin Cam 1999–2009

• Harley Davidson 1468cc Twin Cam 1999–2009

• Twin Cam 88 (88 cu. in.) 1999–2006