Piston Kit 84-90 YZ490 89mm, Forged Wossner 8317D200

Description

Wossner 89.00mm forged piston kit is designed for strength and durability. Engineered for optimal heat transfer, it ensures efficient cooling of the combustion chamber. The elliptical design provides a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability.

Features

  • Forged construction for enhanced strength and longevity
  • Optimized heat transfer for improved engine performance
  • Elliptical design prevents piston collapse and ensures even load distribution
  • Manufactured in Germany for high-quality standards

Specifications

  • Bore Size: 89.00mm
  • Stroke: 82.00mm
  • Compression Height: 40.00mm
  • Number of Rings: 2
  • Clip Part Number: CW18
  • Pin Size: 18mm
  • Pin Part Number: WP042
  • Cylinders: 1
  • Compatible Needle Bearing: N1022

Cross-Reference OEM Part Numbers

  • Part No: 56-W4815.200.WO
  • Wossner Part No: 8317D200

Vehicle Fitments

  • Yamaha YZ490 (1984 - 1990)
  • Yamaha WR500 (1992 - 1993)

Piston Kit 84-90 YZ490 89mm, Forged Wossner 8317D200

Product form

Wossner 89.00mm forged piston kit is designed for strength and durability. Engineered for optimal heat transfer, it ensures efficient cooling... Read more

Out of stock

£0.00 Incl. VAT

    • Guaranteed secure & safe checkout.

      shop pay

    SKU: 56-W4815.200.WO

    • Free shipping on all orders above £75
    • No hassle returns within 30 days

    Description

    Wossner 89.00mm forged piston kit is designed for strength and durability. Engineered for optimal heat transfer, it ensures efficient cooling of the combustion chamber. The elliptical design provides a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability.

    Features

    • Forged construction for enhanced strength and longevity
    • Optimized heat transfer for improved engine performance
    • Elliptical design prevents piston collapse and ensures even load distribution
    • Manufactured in Germany for high-quality standards

    Specifications

    • Bore Size: 89.00mm
    • Stroke: 82.00mm
    • Compression Height: 40.00mm
    • Number of Rings: 2
    • Clip Part Number: CW18
    • Pin Size: 18mm
    • Pin Part Number: WP042
    • Cylinders: 1
    • Compatible Needle Bearing: N1022

    Cross-Reference OEM Part Numbers

    • Part No: 56-W4815.200.WO
    • Wossner Part No: 8317D200

    Vehicle Fitments

    • Yamaha YZ490 (1984 - 1990)
    • Yamaha WR500 (1992 - 1993)

    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.

    WHY NOT CHECK OUT

    Recently viewed products

      Sign up for our newsletter

      Subscribe to our Mailing List

      Never miss any news and be the first to know about sale and offers

      © 2026 Radhouse, Powered by Shopify

        • American Express
        • Apple Pay
        • Diners Club
        • Discover
        • Google Pay
        • Maestro
        • Mastercard
        • PayPal
        • Shop Pay
        • Union Pay
        • Visa