Piston Kit Harley 3.898 SET/2, Wossner K8595D375-2 Davidson

Description

The Wossner K8595D375-2 piston kit is a forged, high-performance solution for Harley Davidson Twin Cam engines. Featuring a +3.75mm oversize bore (3.898") and a domed piston design, this kit delivers a 10:1 compression ratio for increased engine output and efficiency. Manufactured in Germany, it comes complete with essential installation components for dependable operation.

Features

  • Forged high-performance pistons with skirt coating

  • Elliptical design provides consistent thermal expansion and even load distribution

  • Optimised combustion chamber heat transfer to cylinder walls

  • Domed pistons with 10:1 compression ratio

  • Includes rings, clips, and pins

Specifications

  • Bore size: 3.898" (+0.148", +3.75mm)

  • Compression ratio: 10:1

  • Quantity: 2 pistons per kit

  • Made in Germany

Cross-Reference OEM Part Numbers

  • Part No. 56-W9866.375.WO

  • Ring Set Part No. 990XSY

Vehicle Fitments

  • Harley Davidson 1453cc Twin Cam 1999–2009

  • Harley Davidson 1561cc Twin Cam 1999–2009

  • Twin Cam 88 (88 cu. in.) 1999–2006

Piston Kit Harley 3.898 SET/2, Wossner K8595D375-2 Davidson

Product form

The Wossner K8595D375-2 piston kit is a forged, high-performance solution for Harley Davidson Twin Cam engines. Featuring a +3.75mm oversize... Read more

Out of stock

£0.00 Incl. VAT

    • Guaranteed secure & safe checkout.

      shop pay

    SKU: 56-W9866.375.WO

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

    Description

    The Wossner K8595D375-2 piston kit is a forged, high-performance solution for Harley Davidson Twin Cam engines. Featuring a +3.75mm oversize bore (3.898") and a domed piston design, this kit delivers a 10:1 compression ratio for increased engine output and efficiency. Manufactured in Germany, it comes complete with essential installation components for dependable operation.

    Features

    • Forged high-performance pistons with skirt coating

    • Elliptical design provides consistent thermal expansion and even load distribution

    • Optimised combustion chamber heat transfer to cylinder walls

    • Domed pistons with 10:1 compression ratio

    • Includes rings, clips, and pins

    Specifications

    • Bore size: 3.898" (+0.148", +3.75mm)

    • Compression ratio: 10:1

    • Quantity: 2 pistons per kit

    • Made in Germany

    Cross-Reference OEM Part Numbers

    • Part No. 56-W9866.375.WO

    • Ring Set Part No. 990XSY

    Vehicle Fitments

    • Harley Davidson 1453cc Twin Cam 1999–2009

    • Harley Davidson 1561cc Twin Cam 1999–2009

    • Twin Cam 88 (88 cu. in.) 1999–2006

    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