PISTON KIT HARLEY 3.437″ SET/2, WOSSNER K8688DA-2 DAVIDSON, ROAD

This Wossner piston kit is designed for Harley-Davidson 1200 (74 cu. in.) engines, specifically covering FL-FLH Panhead models from 1948–1965 and Shovelhead models from 1966–1977. With a standard bore size of 3.437″ and a domed 8.5:1 compression ratio, the forged pistons deliver reliable performance and heat management. Manufactured in Germany, the kit includes two pistons, rings, clips, and pins.

Features

• Forged high-performance pistons with skirt coating

• Optimised for effective heat transfer from combustion chamber to cylinder walls

• Elliptical design provides uniform bearing surface during thermal expansion

• Even distribution of thrust loads reduces localised stress

• Prevents piston collapse under high-stress conditions

• Includes pistons, rings, clips, and pins

Specifications

• Bore size: 3.437″

• Size: Standard

• Compression ratio: 8.5:1

• Dome type: Domed

• Quantity: Kit includes 2 pistons

• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• Wossner K8688DA-2

• 56-W9980.000.WO

Vehicle Fitments

• Harley-Davidson 1200 (74 cu. in.) FL-FLH Panhead 1948–1965

• Harley-Davidson 1200 (74 cu. in.) Shovelhead 1966–1977