WOSSNER 70mm PISTON KIT A, KAWASAKI KDX250 80-84 , KX250 78-86, KXT250 84-87

Wossner forged piston kit designed for Kawasaki KDX250 (1980-1982) and KX250 (1978-1986) models. Engineered for superior strength and optimal heat transfer, these pistons feature an elliptical design to ensure uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Manufactured in Germany.

Features

• Forged piston for increased strength and durability
• Optimized heat transfer for efficient combustion chamber performance
• Elliptical design for even thrust load distribution and reduced piston collapse
• Manufactured in Germany

Specifications

• Bore Size: 70mm
• Actual Bore Diameter: 69.94mm
• Displacement: 249 cm³
• Stroke: 64.90mm
• Clearance: 0.06mm
• Wossner Compression Ratio: 2-stroke
• OEM Compression Ratio: 2-stroke
• Compression Height: 31.50mm
• Lock Part Number: CW18
• Pin Part Number: WP033
• Ring Set Part Number: RSB7000 x 2

Cross-Reference OEM Part Numbers

• 13001-1004
• 439M07000

Vehicle Fitments

• Kawasaki KDX250 (1980-1982)
• Kawasaki KX250 (1978-1986)