
PISTON KIT ROTAX SWM250 74.00, WOSSNER 8290DA
This Wossner forged piston kit features a 74mm nominal bore (actual 73.93mm) and is designed for ROTAX SWM250 models from 1979 to 1982. Engineered for two-stroke applications, it offers enhanced durability and thermal efficiency for high-performance engines.
Features
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Forged construction provides superior strength and reliability
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Designed for optimal heat dissipation from the combustion chamber to cylinder walls
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Elliptical shape ensures balanced bearing pressure and effective thrust load management
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Manufactured in Germany with high precision and quality control
Specifications
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Bore Size: 74mm (actual 73.93mm)
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Stroke: 57.50 mm
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Clearance: 0.06 mm
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Wossner Compression Ratio: 2 stroke
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OEM Compression Ratio: 2 stroke
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Compression Height: 34.00 mm
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Lock Part Number: CW18
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Pin Part Number: WP033
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Ring Set Part Number: RSB7400 x 2
Vehicle Fitments
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ROTAX SWM250 1979–1982