PISTON KIT HARLEY 3.817 SET/2, WOSSNER K8594D175-2 DAVIDSON

This Wossner forged piston kit with a 3.817" bore is an oversized (+1.75mm / +0.069") replacement for Harley-Davidson 1453cc Twin Cam engines from 1999 to 2009, including Twin Cam 88 (88 cu. in.) models from 1999 to 2006. Made in Germany, the kit includes two flat top pistons with an 8.5:1 compression ratio, coated skirts for reduced friction, and complete installation hardware.

Features

• Forged construction for maximum durability and strength

• Skirt-coated to reduce friction and improve wear resistance

• Engineered for optimal combustion heat transfer

• Elliptical design ensures even load distribution under thermal expansion

• Flat top piston with 8.5:1 compression ratio

• Manufactured in Germany

Specifications

• Bore: 3.817" (+1.75mm / +0.069" Oversize)

• Compression ratio: 8.5:1 (flat top)

• Includes: 2 forged pistons, rings, clips, and pins

• Ring Set Part Number: 970XSY

Cross-Reference OEM Part Numbers

• 56-W9865.175.WO

• K8594D175-2

Vehicle Fitments

• Harley-Davidson 1453cc Twin Cam (1999–2009)

• Harley-Davidson Twin Cam 88 (1999–2006)