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This Wossner forged piston kit is engineered for Husqvarna CR250 and WR250 models from 1992 to 1998, featuring a 67.00mm standard bore. Manufactured in Germany, it combines high-strength forging with an elliptical profile that allows uniform expansion under thermal stress. This helps prevent localised pressure build-up and piston collapse. Designed for efficient heat dissipation from the combustion chamber to the cylinder wall, it supports consistent performance in two-stroke engines.
Features
Forged piston ensures high durability and mechanical reliability
Elliptical shape distributes thermal load evenly
Minimises localised stress to reduce risk of piston failure
Enhances heat transfer from combustion chamber to cylinder wall
German precision manufacturing
Specifications
Bore Size: 67.00mm (Standard)
Actual Diameter: 66.94mm
Compression Height: 35.00mm
Stroke: 70.80mm
Displacement: 249 cm³
Piston Clearance: 0.06mm
Compression Ratio: 2-stroke (Wossner and OEM)
Cross-Reference OEM Part Numbers
Wossner Piston Kit Part No: 8015DA
Lock: CW18
Pin: WP033
Ring Set: RSB6700 x2
Cross Reference: 699M06700
Vehicle Fitments
1992–1998 Husqvarna CR250
1992–1998 Husqvarna WR250