Piston Kit SET/4 R1, Fzr, RX1, Wossner K8840DA-4 Yamaha

Description

This piston kit is designed for Yamaha R1, FZR, and RX1 models spanning 1999 to 2005. It features a set of four forged Wossner pistons with a standard 74.00mm bore, engineered for high-performance applications. The elliptical design ensures even load distribution under thermal expansion, reducing stress points and improving durability. Manufactured in Germany, this kit offers precise fitment and performance characteristics for 1000cc-class engines.

Features

  • Set of 4 forged Wossner pistons

  • Standard bore (74.00mm, actual piston diameter 73.95mm)

  • Elliptical profile for uniform thrust load distribution and thermal control

  • Designed for efficient combustion heat transfer

  • Made in Germany

Specifications

  • Part Number: K8840DA-4

  • Bore Size: 74.00mm (actual piston size 73.95mm)

  • Displacement: 1000cc

  • Displacement Range Displayed: 998 / 1024 / 1051 cm³

  • Stroke: 58.00mm

  • Clearance: 0.05mm

  • Wossner Compression Ratio: 10.20:1

  • OEM Compression Ratio: 11.80:1

  • Dome Volume: -2.60cm³

  • Compression Height: 22.80mm

Cross-Reference OEM Part Numbers

  • Clip: CW17

  • Piston Pin: WP083

  • Replacement Ring Set: 740XDS

Vehicle Fitments

  • Yamaha R1 1999–2003

  • Yamaha FZR 1999–2003

  • Yamaha RX1 2001–2005

Piston Kit SET/4 R1, Fzr, RX1, Wossner K8840DA-4 Yamaha

Product form

This piston kit is designed for Yamaha R1, FZR, and RX1 models spanning 1999 to 2005. It features a set... Read more

Out of stock

£878.28 Incl. VAT

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    SKU: 56-W9900.000.WO

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    Description

    This piston kit is designed for Yamaha R1, FZR, and RX1 models spanning 1999 to 2005. It features a set of four forged Wossner pistons with a standard 74.00mm bore, engineered for high-performance applications. The elliptical design ensures even load distribution under thermal expansion, reducing stress points and improving durability. Manufactured in Germany, this kit offers precise fitment and performance characteristics for 1000cc-class engines.

    Features

    • Set of 4 forged Wossner pistons

    • Standard bore (74.00mm, actual piston diameter 73.95mm)

    • Elliptical profile for uniform thrust load distribution and thermal control

    • Designed for efficient combustion heat transfer

    • Made in Germany

    Specifications

    • Part Number: K8840DA-4

    • Bore Size: 74.00mm (actual piston size 73.95mm)

    • Displacement: 1000cc

    • Displacement Range Displayed: 998 / 1024 / 1051 cm³

    • Stroke: 58.00mm

    • Clearance: 0.05mm

    • Wossner Compression Ratio: 10.20:1

    • OEM Compression Ratio: 11.80:1

    • Dome Volume: -2.60cm³

    • Compression Height: 22.80mm

    Cross-Reference OEM Part Numbers

    • Clip: CW17

    • Piston Pin: WP083

    • Replacement Ring Set: 740XDS

    Vehicle Fitments

    • Yamaha R1 1999–2003

    • Yamaha FZR 1999–2003

    • Yamaha RX1 2001–2005

    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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