Piston Kit Harley 3.521 SET/2, Wossner K8623D050-2 Davidson

Description

This Wossner forged piston kit with a 3.521" bore is an oversized (+0.50mm / +0.019") replacement for Harley-Davidson Buell X9BR and X9BS models from 2002 to 2008, including the XB9R Firebolt and XB9S Lightning. Designed and manufactured in Germany, the pistons offer exceptional strength, thermal efficiency, and reliability. The domed design provides a 10:1 compression ratio, and the kit includes all essential components for installation.

Features

  • Forged construction for maximum durability and performance

  • Skirt-coated to reduce friction and wear

  • Engineered for effective combustion chamber heat transfer

  • Elliptical profile ensures even load distribution during heat expansion

  • Domed piston with 10:1 compression ratio

  • Manufactured in Germany

Specifications

  • Bore: 3.521" (+0.50mm / +0.019" Oversize)

  • Compression ratio: 10:1 (domed)

  • Includes: 2 forged pistons, rings, clips, and pins

  • Ring Set Part Number: 895XSY

Cross-Reference OEM Part Numbers

  • 56-W9864.050.WO

  • K8623D050-2

Vehicle Fitments

  • Harley-Davidson Buell X9BR (2002–2008)

  • Harley-Davidson Buell X9BS (2002–2008)

  • Buell XB9R Firebolt

  • Buell XB9S Lightning

Piston Kit Harley 3.521 SET/2, Wossner K8623D050-2 Davidson

Product form

This Wossner forged piston kit with a 3.521" bore is an oversized (+0.50mm / +0.019") replacement for Harley-Davidson Buell X9BR... Read more

Out of stock

£0.00 Incl. VAT

    • Guaranteed secure & safe checkout.

      shop pay

    SKU: 56-W9864.050.WO

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

    Description

    This Wossner forged piston kit with a 3.521" bore is an oversized (+0.50mm / +0.019") replacement for Harley-Davidson Buell X9BR and X9BS models from 2002 to 2008, including the XB9R Firebolt and XB9S Lightning. Designed and manufactured in Germany, the pistons offer exceptional strength, thermal efficiency, and reliability. The domed design provides a 10:1 compression ratio, and the kit includes all essential components for installation.

    Features

    • Forged construction for maximum durability and performance

    • Skirt-coated to reduce friction and wear

    • Engineered for effective combustion chamber heat transfer

    • Elliptical profile ensures even load distribution during heat expansion

    • Domed piston with 10:1 compression ratio

    • Manufactured in Germany

    Specifications

    • Bore: 3.521" (+0.50mm / +0.019" Oversize)

    • Compression ratio: 10:1 (domed)

    • Includes: 2 forged pistons, rings, clips, and pins

    • Ring Set Part Number: 895XSY

    Cross-Reference OEM Part Numbers

    • 56-W9864.050.WO

    • K8623D050-2

    Vehicle Fitments

    • Harley-Davidson Buell X9BR (2002–2008)

    • Harley-Davidson Buell X9BS (2002–2008)

    • Buell XB9R Firebolt

    • Buell XB9S Lightning

    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

      © 2026 Radhouse, Powered by Shopify

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