John Deere is rolling out two new forage harvesters for North American dairy producers and custom harvesting operations.
The brand new F8 and F9 Series feature three factory-installed operator cab options, a technology stack that will one day enable autonomous operation, and enhanced feed quality via an integrated inoculant dosing system.
How are F8 and F9 different?
The F8 Series (425PS to 645PS) is a narrow base model that takes the place of Deere’s 8000 Series forage harvester, while the F9 Series (700PS to 1020PS) replaces the 9000 Series. Within the F9 Series is the F9 1000, which is Deere’s largest forage harvest machine to date.
(Editor’s Note: “PS” stands for Pferdestärke, which is the German term for horsepower. PS to horsepower is not an apples-to-apples equal ratio. The F9 1000, for example, features 1020PS which equates to 1,006HP, according to the manufacturer.)
The F9 is available in two engine options:
- John Deere 18X (no DEF required)
- Liebherr V12 24L
It has five horsepower options, while the F8 comes with the JD14X engine and can be configured across six horsepower options.
The manufacturer last rolled out completely new forage harvesters in 2019.
How much will each new model cost?
John Deere is not sharing its pricing just yet, but the two new models are built at its Zweibrucken, Germany, factory. John Deere dealers will begin taking orders for the aggressively styled, technology-packed harvesters this fall, with final delivery in time for the 2026 forage harvesting season.
Deere representatives declined comment on what effect, if any, the still-developing U.S.and E.U. tariff situation could have on its launch plans.
Ahead of the launch, Farm Journal went to Madison, Wisc., to kick the tires and learn all about the new machines. The F8 and F9 harvesters we viewed and climbed into were the first finished production units off the factory line. Deere says several units will be field tested with U.S. customers ahead of the full fall launch.
“We’re really excited about the new cab and the technology we’ve added to these machines like central tire inflation, ground speed automation and the new kernel processing units,” says Bergen Nelson, go-to-market manager, combines and forage harvesters.
Here’s some of what we learned about the new forage harvesters:
Cab Comforts: The same three operator cab options offered with Deere’s X and S Series combines — Select, Premium and Ultimate — are available on the F8 and F9 Series. A smoothly swiveling captain’s chair, as well as an all-new corner post display that shows real-time machine data, are among the additions. Operators who spend long hours in the cab will also appreciate integrated entertainment like SXM Radio and an optional mini fridge.
Foundational Deere Tech Stack: Each new forage harvester in the series includes Deere’s baseline precision tech enablement stack — which consists of its G5 display, Starfire 7500 receiver and JDLink modem.
Central Tire Inflation System: A completely new feature (top left inset photo) within the G5 display allows the operator to adjust front tire PSI up or down from the cab.
Inoculant Dosing System 2.0: New on both the F8 and F9, a high-volume 85 gallon inoculant tank and integrated pump allow the user to accurately adjust silage inoculant dosage rates from the G5 display in the cab. The system is easy to pump and prime as well with the touch of a button located at the rear of the machine.
Ground Speed Automation: This cruise control-like option reads RPMs and throttles the harvester up or down based on crop conditions. For example, harvesting corn at higher moisture levels will increase power output, so the machine will automatically slow down to ensure it doesn’t plug up or do a sub-optimal job harvesting. This feature comes standard on all base models for both series and does not require a yearly subscription unlock or per-acre fee.
Pro Touch Harvest: Another new feature within the G5 display allows the operator to shift the machine from road transport mode to harvest mode in a single click. It can also be used to quickly engage AutoTrac and ground speed automation once the operator arrives at the edge of field.
New Kernal Processing (KP) Units: The new harvesters feature two completely redesigned KP units, the Ultimate 250 (also made in Germany) and the Scherer XStream 305, which is made in Sioux Falls, S.D. An integrated winch and internal rail mounting system makes switching the machine from corn forage to hay forage in the field quick and simple. The number signifies each KP unit’s roll diameter width in millimeters.
“Both KPs will go in both machines and have four different roll options depending on how aggressive the dairyman wants their end feed quality to be,” says Shane Campbell, product marketing manager, forage harvesters.
Integrated Harvest Lab 3000: This on-demand constituent sensing module pulls over 4,000 samples per second with +/- 2% accuracy, and John Deere says it can save dairy operations time and money versus collecting and sending samples to a lab. The sensor tech (available as an add-on option) enables accurate measurement and documentation of dry matter, starch, protein, neutral detergent fiber and acid detergent fiber for both harvested forage and manure. The data can be stored, organized and shared via Deere’s Operations Center. Within Operations Center, users can take geo-referenced data and build out spatial starch content — as well as moisture and protein — maps for hybrid selection and fertility management. Because if you can’t measure it, you can’t manage it.
Active Fill Control 3.0: Using sensors and cameras on the grain spout, this tech feature automatically detects the trailer or grain cart next to the forage harvester and begins filling it with a preselected fill strategy. This reduces the number of times an operator has to adjust the spout manually and also lessens fatigue and neck strain, according to Deere.
New Operating Modes: Several of the models within the F9 Series offer what Deere is calling its “Engine Power Plus” feature — which gives a sizeable horsepower boost when the machines senses it needs a little extra chopping power to the harvesting head. There is also an ECO mode that can be toggled on when the machines don’t need the extra torque.
Ease-Of-Access: Both models have side and rear panels that easily open to grant full access to the inner workings of the machines, making the new forage harvesters much easier to service and maintain without a lift or other heavy specialized equipment. The machine is setup so techs and mechanically-minded farmers will not have to climb underneath it to perform daily maintenance.
“At the end of the day, we know it’s all about the cow, and these machines will put out quality feed,” Nelson says. “We’ll have these out at the farm shows this summer, including Farm Progress Show, World Ag Expo, World Dairy Expo and the U.S. Custom Harvesters Convention.”
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