PISTON KIT 81-19 PW50 40.00, 8267DA WOSSNER YAMAHA 18M-11631-00-A0
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PISTON KIT 81-19 PW50 40.00, 8267DA WOSSNER YAMAHA 18M-11631-00-A0 is available to order. Please contact us to confirm availability and lead time.
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Description
Description
This Wossner forged piston kit is a standard-size replacement specifically designed for Yamaha PW50 models from 1981 to 2019. Crafted in Germany, it offers enhanced durability and precise engineering for small two-stroke engines, ensuring optimal fit and performance.
Features
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Forged construction for high strength and longevity
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Elliptical design provides uniform bearing surface during heat expansion
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Facilitates efficient heat transfer to the cylinder walls
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Prevents localised pressure buildup and piston collapse
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Manufactured in Germany
Specifications
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Bore Size: 40.00mm
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Actual Piston Size: 39.95mm
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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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Circlip Part Number: CW10
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Pin Part Number: WP105
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Ring Set Part Number: RSB4000
Cross-Reference OEM Part Numbers
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Part No: 56-W938+000_WO
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Cross Reference: 18M-11631-00-A0, 653M04000
Vehicle Fitments
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Yamaha PW50 (1981–2019)
