PISTON KIT 2010 KX250F 77mm A, WOSSNER 8777DA KAWASAKI MX 13001-0115

This Wossner forged piston kit features a 77mm bore size (76.96mm actual) and is a standard fitment for the 2010 Kawasaki KX250F. Precision-engineered in Germany with a two-ring design, it provides robust performance and durability. The elliptical profile ensures even pressure distribution during heat expansion, enhancing reliability under high-stress conditions.

Features

• Forged piston construction with two-ring configuration

• Elliptical shape ensures uniform bearing surface under thermal expansion

• Designed for efficient heat transfer from combustion chamber to cylinder walls

• Manufactured in Germany

Specifications

• Bore Size: 77mm (actual 76.96mm)

• Displacement: 250 cm³

• Stroke: 53.60 mm

• Clearance: 0.04 mm

• Compression Ratio (Wossner): OEM

• Compression Ratio (OEM): 13.20:1

• Dome Volume: -2.50 cm³

• Compression Height: 19.60 mm

• Lock Part Number: CW16

• Pin Part Number: WP070

• Ring Set Part Number: 770XAS-2

Cross-Reference OEM Part Numbers

• OEM: 13001-0115

• Wiseco: 40009M

• Vertex: 23566

• ProX: 01.4340

• Wiseco: 40009M07700

Vehicle Fitments

• 2010 Kawasaki KX250F