PISTON KIT HARLEY 8.882″ SET/2, WOSSNER K8856D040-2 DAVIDSON, ROAD

This Wossner piston kit is designed for Harley Davidson Twin Cam 88″ Big Bore engines (103 cu. in.) from 1999 to 2012. Featuring a 3.882″ bore oversized by +0.015″, the kit includes domed forged pistons with a 10:1 compression ratio, delivering enhanced performance, heat management, and structural integrity.

Features

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

• Engineered for efficient combustion chamber heat transfer to cylinder walls

• Elliptical design ensures uniform bearing pressure under thermal expansion

• Domed piston configuration provides a 10:1 compression ratio

• Manufactured in Germany

• Includes rings, clips, and pins

Specifications

• Bore size: 3.882″ (+0.015″ oversize)

• Compression ratio: 10:1

• Piston type: Forged, skirt-coated, domed

• Quantity: 2 pistons per kit

• Wossner Part Number: K8856D040-2

• Alternate Part No: 56-W9966.040.WO

Vehicle Fitments

• Harley Davidson Twin Cam 88″ Big Bore (103 cu. in.), years 1999–2012