Piston Kit A Grade 2002-2008 CRF450R 100 Forged Wossner 8546D400

Description

Wossner 100.00mm high-compression big bore forged piston kit is designed for enhanced engine performance. 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

  • High-compression and big bore design for increased performance
  • Forged construction for enhanced strength and longevity
  • Optimized heat transfer for efficient cooling
  • Elliptical design prevents piston collapse and ensures even load distribution
  • Manufactured in Germany for high-quality standards

Specifications

  • Bore Size: 100.00mm
  • Actual Bore Diameter: 99.96mm
  • Displacement: 449 cm³
  • Stroke: 62.10mm
  • Clearance: 0.04mm
  • Wossner Compression Ratio: 12.00:1
  • OEM Compression Ratio: 11.50:1
  • Dome Volume: -2.20 cm³
  • Compression Height: 24.00mm
  • Gasket Part Number: D4006
  • Lock Part Number: CW19
  • Pin Part Number: WP037
  • Ring Set Part Number: 1000AD-2
  • Rod Part Number: P4026

Cross-Reference OEM Part Numbers

  • Part No: 56-W4820_4.00HC
  • Wossner Part No: 8546D400

Vehicle Fitments

  • Honda CRF450R (2002 - 2003)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer Model Years
HONDA CRF R 450 2002-2006
HONDA CRF X 450 2005-2016
HONDA CRF R 450 2002-2008
HONDA CRF R 450 2004
KAWASAKI KLX 400 2003-2006
HONDA CRF R 450 2007-2008
HONDA CRM F R 450 2007
HONDA CRE F R 450 2007

Piston Kit A Grade 2002-2008 CRF450R 100 Forged Wossner 8546D400

Product form

Wossner 100.00mm high-compression big bore forged piston kit is designed for enhanced engine performance. Engineered for optimal heat transfer, it... Read more

Out of stock

£0.00 Incl. VAT

    • Guaranteed secure & safe checkout.

      shop pay

    SKU: 56-W4820_400HC

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

    Description

    Wossner 100.00mm high-compression big bore forged piston kit is designed for enhanced engine performance. 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

    • High-compression and big bore design for increased performance
    • Forged construction for enhanced strength and longevity
    • Optimized heat transfer for efficient cooling
    • Elliptical design prevents piston collapse and ensures even load distribution
    • Manufactured in Germany for high-quality standards

    Specifications

    • Bore Size: 100.00mm
    • Actual Bore Diameter: 99.96mm
    • Displacement: 449 cm³
    • Stroke: 62.10mm
    • Clearance: 0.04mm
    • Wossner Compression Ratio: 12.00:1
    • OEM Compression Ratio: 11.50:1
    • Dome Volume: -2.20 cm³
    • Compression Height: 24.00mm
    • Gasket Part Number: D4006
    • Lock Part Number: CW19
    • Pin Part Number: WP037
    • Ring Set Part Number: 1000AD-2
    • Rod Part Number: P4026

    Cross-Reference OEM Part Numbers

    • Part No: 56-W4820_4.00HC
    • Wossner Part No: 8546D400

    Vehicle Fitments

    • Honda CRF450R (2002 - 2003)

    Vehicle Compatibility

    Please check the exact model and year before ordering.

    Manufacturer Model Years
    HONDA CRF R 450 2002-2006
    HONDA CRF X 450 2005-2016
    HONDA CRF R 450 2002-2008
    HONDA CRF R 450 2004
    KAWASAKI KLX 400 2003-2006
    HONDA CRF R 450 2007-2008
    HONDA CRM F R 450 2007
    HONDA CRE F R 450 2007

    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