PISTON 98-00 YZF/WR400F 92 HC, WOSSNER PISTON KIT 8639DB

Wossner High Compression Forged Piston Kit - 92mm Bore

Enhance your engine's performance with this Wossner forged piston kit, engineered for high compression and superior power output. This piston is meticulously designed for optimal heat transfer to the cylinder walls, ensuring efficient combustion and consistent engine operation.

The innovative elliptical design of the piston provides a uniform bearing surface even under extreme heat expansion. This feature significantly reduces localized pressure points and evenly distributes thrust loads, effectively preventing piston collapse and extending engine life.

Manufactured in Germany to exacting standards, this Wossner piston kit represents the pinnacle of quality and engineering for performance-driven engines.

Key Features

• High-compression forged piston for maximum performance gains.
• Engineered for optimized heat transfer, promoting efficient combustion.
• Elliptical design prevents piston collapse by managing heat expansion and load distribution.
• Precision manufacturing in Germany ensures exceptional quality and durability.

Specifications

• Bore Size: 92.01mm
• Actual Bore Diameter: 91.96mm
• Displacement: 399 cm³
• Stroke: 60.10mm
• Piston Clearance: 0.05mm
• Wossner Compression Ratio: 13.50:1
• OEM Compression Ratio: 12.50:1
• Dome Volume: -4.60 cm³
• Compression Height: 24.10mm

Included Components

• Lock Part Number: CW18
• Pin Part Number: WP053
• Ring Set Part Number: 920XSY