Piston Kit Harley 3.837 SET/2, Wossner K8594D225-2 Davidson

The Wossner K8594D225-2 piston kit is a high-performance forged piston set designed for Harley Davidson Twin Cam engines. Engineered for enhanced durability and thermal efficiency, these pistons offer a flat top design with an oversized bore of +2.25mm (3.837") and a compression ratio of 8.5:1. Made in Germany, this kit includes all necessary components for installation, ensuring precise fit and performance.

Features

• Forged high-performance pistons with skirt coating

• Elliptical design for even heat expansion and load distribution

• Optimised combustion chamber heat transfer

• Flat top design with 8.5:1 compression ratio

• Includes rings, clips, and pins

Specifications

• Bore size: 3.837" (+0.089", +2.25mm)

• Compression ratio: 8.5:1

• Quantity: 2 pistons per kit

• Made in Germany

Cross-Reference OEM Part Numbers

• Part No. 56-W9865.225.WO

• Ring Set Part No. 975XSY

Vehicle Fitments

• Harley Davidson 1453cc Twin Cam 1999–2009

• Harley Davidson 1514cc Twin Cam 1999–2009

• Twin Cam 88 (88 cu. in.) 1999–2006