Piston Kit 88-92 YZ80 49.00, Wossner 8187D100 Yamaha MX

Description

The Wossner 8187D100 piston kit is built for Yamaha YZ80 models from 1988 to 1992, featuring a 49.00 mm bore for +1.00 mm oversize applications. This German-made forged piston is engineered for durability and optimal heat dissipation. Its elliptical design allows for an even bearing surface during thermal expansion, minimising localised pressure and helping to prevent piston collapse. The kit includes all critical components required for a complete and precise engine rebuild.

Features

  • Forged piston construction ensures high strength and thermal efficiency

  • Designed for effective heat transfer from the combustion chamber

  • Elliptical profile promotes uniform thrust load distribution

  • Minimises localised pressure and reduces the risk of piston collapse

  • Precision engineered in Germany

Specifications

  • Bore Size: 49.00 mm

  • Actual Bore Diameter: 48.95 mm

  • Stroke: 45.60 mm

  • Display Displacement: 82 cm³

  • Clearance: 0.05 mm

  • Compression Ratio (Wossner and OEM): 2-stroke

  • Compression Height: 27.00 mm

Cross-Reference Wossner Part Numbers

  • Piston Kit: 8187D100

  • Lock: CW12

  • Pin: WP091

  • Ring Set: RSB4900

  • Part No.: 56-W569+100.WO

Vehicle Fitments

  • Yamaha YZ80 (1988–1992)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer Model Years
YAMAHA YZ 80 1988-1992

Piston Kit 88-92 YZ80 49.00, Wossner 8187D100 Yamaha MX

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The Wossner 8187D100 piston kit is built for Yamaha YZ80 models from 1988 to 1992, featuring a 49.00 mm bore... Read more

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    SKU: 56-W569+100.WO

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    Description

    The Wossner 8187D100 piston kit is built for Yamaha YZ80 models from 1988 to 1992, featuring a 49.00 mm bore for +1.00 mm oversize applications. This German-made forged piston is engineered for durability and optimal heat dissipation. Its elliptical design allows for an even bearing surface during thermal expansion, minimising localised pressure and helping to prevent piston collapse. The kit includes all critical components required for a complete and precise engine rebuild.

    Features

    • Forged piston construction ensures high strength and thermal efficiency

    • Designed for effective heat transfer from the combustion chamber

    • Elliptical profile promotes uniform thrust load distribution

    • Minimises localised pressure and reduces the risk of piston collapse

    • Precision engineered in Germany

    Specifications

    • Bore Size: 49.00 mm

    • Actual Bore Diameter: 48.95 mm

    • Stroke: 45.60 mm

    • Display Displacement: 82 cm³

    • Clearance: 0.05 mm

    • Compression Ratio (Wossner and OEM): 2-stroke

    • Compression Height: 27.00 mm

    Cross-Reference Wossner Part Numbers

    • Piston Kit: 8187D100

    • Lock: CW12

    • Pin: WP091

    • Ring Set: RSB4900

    • Part No.: 56-W569+100.WO

    Vehicle Fitments

    • Yamaha YZ80 (1988–1992)

    Vehicle Compatibility

    Please check the exact model and year before ordering.

    Manufacturer Model Years
    YAMAHA YZ 80 1988-1992

    Shipping & Delivery

    How long will my item take to arrive?

    Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

    Where do you ship to?

    We currently only ship orders within the UK.

    How can I track my order?

    Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

    Can I collect my order?

    Unfortunately we do not offer order collections from our fulfilment centre.

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