PISTON KIT 86-88 YZ125 57.00, WOSSNER 8118D100 YAMAHA MX
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PISTON KIT 86-88 YZ125 57.00, WOSSNER 8118D100 YAMAHA MX is available to order. Please contact us to confirm availability and lead time.
Pickup currently unavailable at Braydon Trailers HQ
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Description
Description
This Wossner 57.00mm (+1.00 oversize) forged piston kit is specifically engineered for Yamaha YZ125 two-stroke models from 1986 to 1988. Made in Germany, it features a high-strength forged construction with an elliptical design that enhances structural integrity, promotes even distribution of combustion forces, and improves thermal management. Its design ensures consistent and reliable performance under demanding riding conditions.
Features
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Forged piston for high strength and durability
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Elliptical design provides uniform bearing surface during heat expansion
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Even thrust load distribution helps prevent localised stress and piston collapse
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Designed for effective combustion heat transfer to the cylinder walls
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Manufactured in Germany
Specifications
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Bore: 57.00mm
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Actual diameter: 56.94mm
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Displacement: 123 cm³
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Stroke: 50.00mm
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Clearance: 0.06mm
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Compression height: 30.00mm
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Compression ratio: 2-stroke
Cross-Reference OEM Part Numbers
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Piston Kit Part No.: 56-W559+100.WO
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Wossner Piston Kit No.: 8118D100
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Lock: CW16
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Pin: WP036
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Ring Set: RSB5700
Vehicle Fitments
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Yamaha YZ125 1986
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Yamaha YZ125 1987
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Yamaha YZ125 1988
