PISTON KIT Harley S1 LIGHTNING, WOSSNER K8625D050-2 89.50mm, Harley Davidson S1 White Light

This Wossner K8625D050-2 piston kit is a high-performance forged set engineered for Harley Davidson 1200–1228cc engines. With an oversize bore of 89.50mm (+0.50mm), it is designed for optimised heat transfer, improved durability, and consistent performance under extreme conditions. Manufactured in Germany, this kit is suitable for demanding applications including motorsport.

Features

• Forged piston construction offering high strength and durability

• Elliptical design ensures even load distribution under thermal expansion

• Maximises heat dissipation from combustion chamber to cylinder walls

• Includes pistons, rings, pins, and circlips for complete installation

• Designed for competition-level performance

• Made in Germany

Specifications

• Bore Size: 89.50mm (Piston Diameter: 89.45mm)

• Compression Ratio: 10:1

• Compression Height: 30.7mm

• Quantity: Set of 2 pistons

• Wossner Part Number: K8625D050-2

• Reference Part Number: 56-W9941.050.WO

Cross-Reference OEM Part Numbers

• Wossner K8625D050-2

• 56-W9941.050.WO

Vehicle Fitments

• Harley Davidson S1 White Lightning 1200–1228cc

• Harley Davidson Thunderbolt 1200–1228cc

• Harley Davidson Buell 1200–1228cc