Research / Farm & Agriculture

John Deere – 9900 Self-Propelled Forage Harvester

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  • CategoryFarm & Agriculture
  • Year2020
  • BrandJohn Deere
  • ModelSelf-Propelled Forage Harvester

Key Features

  • Make: John Deere
  • Category: Farm & Agriculture
  • Year: 2020
  • Description:
    • 956 hp, 24L Liebherr V12 engine
    • Driveline designed to deliver optimal crop flow when the engine is operating in its efficiency sweet spot
    • The ProStream crop flow designed with extra heavy-duty components for high horsepower and more throughput than ever before



Key Specs

Maximum power at 1800 rpm 713 kW, 970 PS / 956 hp
Engine Type, Liebherr, Exhaust emission regulation compliancy: Final Tier 4 / Stage V, Displacement, 24.2 L, 1476.8 cu in., Model, D9512 A7 04, Cylinders, V 12,
Fuel system Common rail plus four valves
Fuel tank capacity 1,500 L, 396.3 U.S. gal.
DEF tank capacity ( for FT4 or EU Stage V emission level) 103 L, 23.8 U.S. gal.
Hand wash tank capacity

Engine power

Maximum power at 1800 rpm 713 kW, 970 PS / 956 hp
Maximum power at 1900 rpm
Rated power at 2100 rpm
Fuel tank capacity 1500 L, 396.3 U.S. gal.
DEF tank capacity ( for FT4 or EU Stage V emission level) 103 L, 23.8 U.S. gal.


Type Liebherr
Model D9512 A7 04
Displacement 24.2 L, 1476.8 cu in.
Cylinders V 12
Speed on road
Engine/ground speed management
Fuel system Common rail plus four valves

Cooling system

Cooling system capacity 130 L, 34.34 U.S. gal.
Cooling fan drive Direct


Ground drive Prodrive™, autoshift transmission, differential lock (automatic and manual), automatic wet brake system, Engine rpm on road: 1200-1800 rpm
Hydraulics Load sensing
Crop harvesting unit Harvest channel wide
Crop flow components Low-friction crop-flow concept
Main clutch Dry clutch
Number of discs Two discs
Main driveband Reinforced with Kevlar inserts
Belt tensioning Active, hydraulic pressure
Main driveband, polybelt belts Nine ribs

Electrical system/Electrical and hydraulic system

Type/voltage 12 / 24 V
Batteries/battery quantity/capacity 3 x 174 amp-hr
Alternator 14 V - 200 amp, 24 V - 140 amp
Hydraulic system capacity 50 L, 13.2 U.S. gal.

Ground drive

Differential lock Manual and automatic
Maximum transport speed ProDrive transmission: 20 / 25 / 30 / 40 km/h, 12.4 / 15.5 / 18.6 / 24.9 mph
Rear axle type Hydro-mechanical 4WD
Automatic wet brake system Standard
Engine rpm - Management Standard


Tilt and extend steering column Standard
Air conditioning and heater Standard - ClimaTrak
Cool box Optional
Trainee seat Standard
Hectare counter Standard
Operator information system Cornerpost display
CAN-BUS electronics Standard
Operator's seat Air-suspension seat optional
Side window wiper Rear and side window wiper optional, Parallel-type windscreen wiper
Electric adjust and heated Optional on rear view mirrors
Rear view mirrors Standard
Hand wash tank capacity

Machine management solutions

Yield monitoring Harvest Monitor™ optional
Documentation Harvest Doc™ optional
Crop analysis HarvestLab™ optional
Length-of-cut control based on crop parameter Infinitely variable length-of-cut (IVLOC™) standard, AutoLOC optional - use with HarvestLab
Satellite (GPS) assisted steering AutoTrac™ optional

Crop-harvesting units

Header height control Advanced header control (AHC) optional
Grass pick-ups (transport width) 3.0, 4.0, 4.5 m, 9.8, 13.1, 14.8 ft
Maize or corn headers
Header connection

Feeding system/Feedrolls

Feed roll frame opening Swing away, 37-45 degree (angle)
Number Four
Metal detector Standard, Stone detector is optional
Width, front 830 mm, 32.7 in.
Standard feed roll drive Hydro feedroll drive IVLOC standard, Infinitely variable header drive speed standard
Optional feed roll drive


Type Dura-Drum™ cutterhead
Cutterhead housing width
Knife drum width 850 mm, 33.5 in.
Knife drum diameter 670 mm, 26.4 in.
Speed at rated engine speed Standard - 1170 rpm, Optional - 1350 rpm
Knife types available (crop) Straight - grass, Curved - corn
Number of knives
Shear bar, reversible
Shear bar adjust

Knife sharpening system

Reverse rotation Yes
Automatic from cab Yes, remote from cab
Reverse drive Standard
Reverse speed
Sharpening modes

Kernel processor

Type John Deere Premium KP, John Deere XStream KP
Quick-change Quick kernel processor - swing in/swing out
Quick KP removal Optional crane with remote-controlled electric hoist

John Deere Premium KP

Roll diameter
Speed differential / Roll speed (lower)
Maize, roll teeth number (speed differential)
Wholecrop, roll teeth number (speed differential)
Sorghum, roll teeth number (speed differential)
Available KP rolls

John Deere XStream KP

Roll diameter 250 mm, 9.8 in.
Speed differential / Roll speed (lower)
Bearing temperature monitoring system
Maize, roll teeth number (speed differential) 110/145 (50 percent)
Wholecrop, roll teeth number (speed differential) 145/165 (50 percent)
Sorghum, roll teeth number (speed differential) 238 (32 percent)
Available KP rolls

Serrated roller (kernel processor)

Maize, roll teeth number (speed differential)
Wholecrop, roll teeth number (speed differential)
Sorghum, roll teeth number (speed differential)

Disk type (kernel processor)

Number of disks (top/bottom)
Diameter of disks

Blower/Crop accelerator

Rotor diameter/housing width 560 / 620 mm, 22.86 / 24.41 in.
Number of blades 10
Speed (option) 1890 rpm


Rotation, degrees 210 degree (angle)
Hydraulic height position Hydraulic raise and lower standard, Automatic spout positioning optional
Double-cap deflection Standard
Number of wear liners
Reach from center line (Optional) 6 or 8 row: 4.73 m, 15.5 ft, 10 row: 5.87 m, 19.3 ft, 12 row: 6.71 m, 22 ft


Rotary radiator screen cleaner Standard
Automatic lubrication system AutoLube optional
Engine oil and filter change duration 1000 hours


With front tires 710/70R42
With rear tires 620/60R30
Transport length (without header) 6.6 m, 21.7 ft
Transport width (without header) 3.1-3.7 m, 10.2-12.1 ft
Transport height (to cab roof) 3.89 m, 12.75 ft
Working height (maximum) Height to spout: 6.60 m, 21.65 ft
Approximate weight (without header)

High-capacity feeding supports high silage quality

Leading header technology

John Deere rotary harvesting units are built for reliable and powerful feeding of high-capacity forage harvesters. Two fundamental designs are available to match all producer needs. The 600plus Series Headers are the universal solution for different crops up to 4-m (13.1-ft) tall. The 700plus Series Headers are the perfect solution for high-yielding crops.772 Rotary Harvesting UnitAvailable beginning in model year 2019, the top-model 772 12-Row Large-Drum Rotary Harvesting Unit has been designed to fully leverage the capacity of 9000 Series Self-Propelled Forage Harvesters (SPFH).6X9 Series Windrow PickupThe 6X9 Series Pickups with the patented endless flight vortex auger design and optional dual header drive enable high-capacity feeding of John Deere SPFH. Key advantages are the throughput boost in high-yielding crops but also the easy handling of uneven windrows.

Variable header drive

Power distribution gearbox (A), header pump (B), and header motor (C)John Deere SPFH come with variable header drive in base. The header speed is automatically synchronized with the feeding speed and length of chop through a hydrostatic IVT™ drive system. This ensures a gentle and even crop transfer from the header into the machine without blocking or disrupting material transition. Producers receive the benefit of high chopping quality and full leverage of the header and crop flow potential.

Dual header drive

Dual header drive for the SPFH and the 6X9 Series Pickups complements the benefits of the variable header drive. While the variable header drive automatically synchronizes the pickup auger and harvester feeding speed, the dual header drive with its individual hydraulic drive of the pickup tines is speed matched with vehicle speed to ensure clean crop picking in changing conditions and windows.Speed synchronization between the SPFH and headerTines speed up and slow down with forward speed while the pickup auger speed is still synchronized with the length of chop and feedroll speed. Producers benefit from a better quality of chop, smoother feeding, and an easy-to-utilize harvesting system.

Hydraulic feedroll dampening

The 9000 Series SPFH offer the hydraulic feedroll dampener in base. Next to the four individual springs applying high pressure on the crop mat entering the machine, the dampener supports crop compaction in uneven crop conditions and ensures smooth feeding even at the highest feeding speeds when chopping for a very long period.Hydraulic feedroll dampeningCrop compaction and even feeding at the feedroll

Unique foreign object protection

A state-of-the-art metal detector scans for metal in the crop mat and stops the intake in case of tripping. Optionally, this safety device can be completed with a unique stone detection feature that senses for knocks and abnormal feedroll movement. Two redundant sensors developed for this application improve solid foreign object detection and minimize false tripping caused by lumps or uneven windrows.

Low engine speed concept

The John Deere 9000 Series Self-Propelled Forage Harvesters (SPFH) have been developed with a clear focus on machine performance: more throughput and less fuel consumption while providing maximum uptime and low cost of operation. A key success factor is the concept of lower engine rpm at higher harvesting component speeds.

V12 – 24-L concept: The Liebherr® D9512 engine

The top-model 9700, 9800, and 9900 SPFH are equipped with a Liebherr 12-cylinder V-engine with 24-L displacement. The Liebherr D9512 is a state-of-the-art engine and delivers what a high-performance forage harvester requires:

  • High power density and great fuel efficiency
  • Constant maximum power down to lower engine rpm
  • Torque curve designed for forage harvesting applications

Torque and power of the Liebherr engineThe broad maximum power range of the Liebherr V12 engine cuts off the less-efficient rpm area above 1800 rpm. The rising torque curve down to 1300 rpm enables efficient operation of the machine in the lower rpm range.

Revised driveline with optimized component speeds

To reach maximum efficiency and performance, all machine component speeds are re-worked and laid out for best function in the 1400 to 1800 engine rpm range. This also leads to better fuel efficiency with an optimum range from 1250 to 1600 rpm, where the engine has its lowest specific fuel consumption (g/kWh).Specific fuel usage in rpm rangeThis unique concept delivers undisputed customer value:

  • 10 percent more throughput (t/kW)*
  • 10 percent better fuel economy (L/t)*
  • More hours in the field with 1500-L (396.25-gal.) diesel tank and 90-L (23.8-gal.) urea tank
  • *Compared to replaced models Liebherr is a trademark of Liebherr-International AG.

    Kernel processing

    John Deere Premium KP™John Deere XStream KP™All 9000 Series Self-Propelled Forage Harvesters (SPFH) can be operated with or without a kernel processing unit in position. When not in use, a crop transition chute swings into position at a few turns of a crank. The crop transition chute comes standard on all harvesters. Also available on all SPFH is the optional dismounting crane for easy kernel processing swing outside the service compartment. The 9000 Series SPFH feature the AutoLube central greasing harness; the respective central greasing equipment is available on the Premium Kernel Processor as well. The XStream Kernel Processor features an automatic pressurized oil lubrication. For the 9000 Series, two types of kernel processors (KP) are offered: the John Deere Premium KP and the John Deere XStream KP. Both kernel processors have been tested and proven by independent experts during corn harvest in 2016 and 2017. The 9600, 9700, and 9800 SPFH can be equipped with the John Deere XStream KP or the John Deere Premium KP. For the 9900, only the heavy-duty XStream KP solution is available.

    John Deere Premium KP

    On the 9000 Series, the proven John Deere Premium KP can be installed on the 9600, 9700, and 9800 models. With their highly intense processing, they deliver the best results at any length of cut. The Premium KP has a standard KP housing with grease lubrication in base. The roll diameter is 240 mm (9.45 in.) with 32 percent speed differential. As an option, 40 percent speed differential can be installed, if required. The following rolls are available for the Premium KP:

    • Dura Line™ sawtooth
    • Whole crop
    • Milo

    With Dura Line rolls, a longer lifetime and less wear can be reached, resulting in less cost of operation. For an easy and uncomplicated mounting and dismounting of the Kernel Processor, a crane with electric winch can be installed as an option.

    John Deere XStream KP

    The John Deere XStream KP is made for high-horsepower machines and stands for extreme kernel processing at any length of cut. The XStream KP rolls are manufactured and delivered by Scherer Inc., which is located in South Dakota, Unites States. The kernel processor fits all 9000 Series models (9600 through 9900). As Scherer Inc. has a strong focus on dairy forage production and is the leading company in KP roll designs and manufacturing since 1999, a strong statement is set in regards to kernel processing and forage quality. More information about Scherer Inc. can be found on their website: XStream KP is equipped with a heavy-duty housing with KP roll quick-exchange system and pressurized oil lubrication. The roll diameter is 250 mm (9.8 in.) with 50 percent speed differential. As an option, the XStream KP can be equipped with bearing temperature monitoring. The following rolls are available for the XStream KP:

    • Dura Line sawtooth
    • Dura Line XCut rolls
    • Whole crop XCut rolls

    In comparison to the Dura Line sawtooth rolls, the Dura Line XCut rolls have a spiral groove sawtooth profile, delivering excellent processing, especially at long lengths of cut. The spiral groove design delivers highly processed plants and smashed kernels.

    Dura Line™ components

    Low cost of operation and longer lifetime

    Due to a special heat treatment, the coating is extremely wear resistant and has an extraordinarily smooth surface. This results in a permanent fast chopping process while the fuel consumption remains low. Tests show that while chopping in the same crop conditions and chopping the same tonnage, Dura Line parts last four times as long as, or longer than, standard parts. Time and money associated with replacing parts are significantly reduced.

    Benefits of Dura Line parts
    • Performance – an extremely hard coating makes Dura Line wear parts the toughest. Dura Line is exclusively supplied from John Deere.
    • Uptime – Dura Line uses a unique technology that provides more hours of extensive machine use before parts need to be replaced. A proprietary tungsten carbide composition associated with unique application provides this exclusive wear-resistance performance.
    • Cost of operation – premium John Deere parts last up to five times longer and cut labor costs. This significantly minimizes the risk of downtime during the harvesting season, saving money in the long run.
    Dura Line packages

    Dura Line parts cover nearly every wear part that does not already have a high-wear solution. The main crop flow elements are hardened and more resistant, even in the toughest conditions. Dura Line parts include spiral band, knife brackets, front chute, grass channel blower band, blower side liners, spout liners, and spout caps. Three packages are available to match different producer requirements:Producers have the ability to equip their 8000 or 9000 Series Self-Propelled Forage Harvesters (SPFH) with Dura Line components for extended part lifetime and lower cost of operation.Three packages are available to match different producer requirements:

    # Dura Line™ Component Basic Premium Ultimate
    1 Spiral band (cutterhead floor)
    2 Accelerator band
    3 Spout flap
    4 Spout wear liners
    5 Front chute base liner
    6 Grass chute base liner
    7 Accelerator side wall liners
    8 Front chute side liners
    9 Smooth roll scraper
    10 Dura Line knife holders
    11 Transition front liners (Model year 2019)
    12 Dura Line Plus Shearbar

    Dura Line spout and wear parts

    Option code Description
    2720 Standard wear machine
    2721 Dura Line Basic
    2722 Dura Line Premium
    2723 Dura Line Ultimate

    Detect dry matter, sugar, starch, and more with intelligent HarvestLab™ 3000 sensor

    HarvestLab measures dry matter on the goDry matter sensor mounts on the spoutThe HarvestLab sensor mounts to the top of the discharge spout and takes accurate dry matter and ingredient readings (more than 4000 measurements per second) of the crop through the sapphire glass lens as crop passes through the spout. This is the same technology forage labs use to measure dry matter. HarvestLab with John Deere Constituents Sensing measures dry matter, and has the ability to measure sugar, starch, acid detergent fiber (ADF), neutral detergent fiber (NDF), and crude protein in corn silage as well as ensiled material when used as a stationary unit. When HarvestLab is used in conjunction with Harvest Monitor™, a wealth of important information becomes available to the operator, including productivity in acres per hour, throughput in tons per hour, total area harvested, total crop mass harvested, yields, and dry matter. When the HarvestLab is used in conjunction with an 8000 or 9000 Series Self-Propelled Forage Harvester (SPFH) and a GreenStar™ display, AutoLoc™ functionality is automatically present. AutoLoc automatically varies the length of cut according to the desired crop-dry matter correlation settings based on the dry matter readings from the HarvestLab sensor.

    Crop type and constituent sensing (R4)
    Crop Material Dry Matter ADF* NDF** Starch Protein Sugar Crude Fibre (XF) Crude Ash (XA)
    Corn silage Freshly harvested and ensiled Yes Yes Yes Yes Yes No No No
    Alfalfa Yes Yes Yes No Yes Yes No No
    Snaplage Yes Yes Yes Yes No Yes No No
    Whole crop silage Yes Yes Yes Yes Yes No No No
    Grass Yes Yes Yes No Yes Yes Yes Yes

    *ADF - Acid Detergent Fibre**NDF - Neutral Density Fibre

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