• (Change)
  • |
  • Dealer Locator
  • |
  • MyJohnDeere
/ / / / 8400


Features & Specs

  • High efficiency in forage cropping
  • Excellent quality of harvested forage (consistent crop cut, easily adjusted from inside the cab)
  • Unparalleled visibility and operator comfort
  • Automatic sharpening controlled directly from the operator station
Engine Power369 kW @ 2100 rpm
Cutterhead housing width685.5 mm
Length of cut with 40 knives7-26 mm in 1 mm steps
Length of cut with 48 knives6-22 mm in 1 mm steps
See All Specs

Locate A DealerLocate A DealerBuild Your Own

Build Your Own

Choose your Country : http://configurator.deere.com/servlet/com.deere.u90947.eproducts.view.servlets.EProductsInitializationServlet?userAction=configureProduct&lang=en&country=AU&sbu=Ag&pciModel=8400+Zhttp://configurator.deere.com/servlet/com.deere.u90947.eproducts.view.servlets.EProductsInitializationServlet?userAction=configureProduct&lang=en&country=NZ&sbu=Ag&pciModel=8400+Z

    8400 8000 Series Self-Propelled Forage Harvesters


    Reliability, cutting performance and cost of operation are the three most important factors when choosing a new forager. Better reliability means more uptime. Precision cutting brings more value to your operation. And lower cost of operation delivers more profitability. The 8000 Series brings all of these to your business and more.







    Your local John Deere dealer is the best resource for support of your John Deere equipment.

    Find a DealerFind a Dealer


    We strive to ensure that John Deere products are of exceptional quality. Safety is our top priority.

    View Safety Information


    View a list of all technical publications for this product.  Some Operator's Manuals are available for viewing in electronic format.

    Search Technical Publications Search Technical Publications


    Whether you're checking parts availability or placing an order JDParts Online brings your John Deere dealer's parts counter right to you.

    View JDParts.JohnDeere.comView JDParts.JohnDeere.com

    2.5% Finance Available* on Self-Propelled Forage Harvesters & Plus Parts Package

    Just Chop It

    01 February 2017 - 30 April 2017

    *Conditions apply. Finance available through John Deere Financial Limited to approved Australian commercial applicants only. Offer is based on 30% deposit, GST back and 3 year term with 3 annual repayments. Fees and charges apply. If not amended or withdrawn earlier, the promotion expires on 31/03/16. Other terms and rates are available.

    Product features are based on published information at the time of publication. Product features are subject to change without notice. Contact your local John Deere dealer for more information.