PISTON KIT HARLEY 3.816 SET/2, WOSSNER K8620DA-2 DAVIDSON, ROAD
Wossner Piston Kit K8620DA-2 for Harley Davidson 1200 Big Bore engines with a 3.812" stroke. Features forged, skirt-coated, reverse dome pistons for reduced friction and durability. Designed for effective heat transfer and uniform load distribution with an elliptical design. Provides a 10.5:1 compression ratio. Manufactured in Germany. Kit includes 2 pistons, rings, clips, and pins. Requires case boring and use of aftermarket Big Bore cylinders. Bore size is 3.816". Alternate Part No: 56-W9956.000.WO. Weight: 1164g.
- SKU
- 56-W9956.000.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Harley Davidson 1200 Big Bore Piston Kit - 3.816 Inch Bore
Upgrade your Harley Davidson 1200 Big Bore engine with this high-performance Wossner Piston Kit. Engineered for durability and optimal performance, this kit is designed for engines with a 3.812 inch stroke. The pistons feature a standard 3.816 inch bore and a reverse dome design to achieve a 10.5:1 compression ratio. This kit is intended for use with aftermarket Big Bore cylinders and requires case boring for installation.
Key Features:
- Forged high-performance pistons (2 pieces) with a skirt coating to reduce friction and enhance durability.
- Precision-engineered for efficient heat transfer from the combustion chamber to the cylinder walls.
- Elliptical piston design ensures uniform load distribution under thermal expansion, promoting longevity.
- Reverse dome pistons provide a 10.5:1 compression ratio for increased power.
- Manufactured in Germany to exacting standards.
- Complete kit includes piston rings, clips, and pins.
- Requires boring of engine cases and the use of aftermarket Big Bore cylinders for proper fitment.
Specifications:
- Bore Size: 3.816 inches (standard size for Big Bore applications)
- Compression Ratio: 10.5:1
- Stroke: 3.812 inches
- Piston Type: Forged, skirt-coated, reverse dome
- Quantity: 2 pistons per kit
- Wossner Part Number: K8620DA-2


