WOSSNER 68.5mm PISTON KIT KAWASAKI KX250 1990-1991, KDX250 1991-1994

Wossner Forged Piston Kit 68.50mm Bore – Kawasaki KX250 / KDX250 (1990–1994)
This Wossner forged piston kit is made for Kawasaki KX250 and KDX250 models produced between 1990 and 1994. With a bore size of 68.50 mm and a piston diameter of 68.44 mm (+1.10 mm oversize), it is designed for overbored or re-sleeved cylinders. The piston’s forged construction ensures enhanced durability, while its elliptical shape promotes even pressure distribution under thermal expansion. Precision-manufactured in Germany for high-performance reliability.

Features

• Forged piston for maximum strength and extended durability

• Optimised combustion heat transfer to maintain cylinder integrity

• Elliptical geometry provides consistent load distribution and minimises piston wear

• Manufactured in Germany for precision and consistency

Specifications

• Bore Size: 68.50 mm

• Piston Diameter: 68.44 mm

• Engine Displacement: 250 cm³

• Stroke: 70.00 mm

• Clearance: 0.06 mm

• Compression Height: 37.00 mm

• Compression Ratio: 2-stroke (Wossner and OEM)

Cross-Reference Wossner Part Numbers

• Piston Kit: 8109D110

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6850

• Rod: P2022

Vehicle Fitments

• 1990 Kawasaki KX250

• 1991 Kawasaki KX250

• 1991 Kawasaki KDX250

• 1992 Kawasaki KDX250

• 1993 Kawasaki KDX250

• 1994 Kawasaki KDX250

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.