PISTON KIT 81-19 PW50 40.50, WOSSNER 8267D050 YAMAHA
PISTON KIT 81-19 PW50 40.50, WOSSNER 8267D050 YAMAHA
This Wossner forged piston kit is a +0.50mm oversize replacement for Yamaha PW50 models from 1981 to 1997. Engineered with precision and manufactured in Germany, it provides enhanced strength and consistent performance for two-stroke engine applications requiring a slightly larger bore size.
Features
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Forged piston construction for superior strength and durability
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Elliptical design ensures a consistent bearing surface during heat expansion
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Promotes efficient heat dissipation to cylinder walls
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Prevents localised stress and piston collapse
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Manufactured in Germany
Specifications
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Bore Size: 40.50mm
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Actual Piston Size: 40.45mm
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Stroke: 39.20mm
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Piston Clearance: 0.05mm
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Wossner Compression Ratio: 2-stroke
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OEM Compression Ratio: 2-stroke
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Compression Height: 24.90mm
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Lock Part Number: CW10
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Pin Part Number: WP105
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Ring Set Part Number: RSB4050
Cross-Reference OEM Part Numbers
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Part No: 8267D050
Vehicle Fitments
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Yamaha PW50 (1981–1997)