John Deere 9800 Self-Propelled Forage Harvesters
John Deere 9800
Average price
$464,600




5+
sold in last yearGeneral overview
The John Deere 9800 is a self-propelled forage harvester built for field harvesting of chopped forage crops. Produced in 2022, it uses a Liebherr D9512 A7 04 engine rated at 631 kW (858 hp) and meets Tier 4 Final emissions requirements. This places it in a high-power class for large-volume forage work.
Its ProDrive ground drive is paired with manual and automatic differential lock, and it can travel at 40 km/h (24.9 mph) for transport between fields. The model uses a Dura-Drum™ cutterhead, offers a working height of 6,600 mm (21 ft 8 in), and is compatible with maize headers (8, 10 or 12 row configurations commonly offered). A 210° spout rotation supports crop discharge control during harvesting.
Year
2021, 2022
Country of manufacturing
United States
General specifications
Dimensions
Length
6,600 mm
~259.8 in
Rotor Diameter/Housing Width
0.56 m
Additional specifications
Engine Power
858 hp
Emission standard level
Tier 4 Final
Displacement
24 cu(m)
Fuel tank
1,500 L
Manufacturer
Liebherr
Ground drive type
ProDrive
Differential lock
Manual and automatic
Maximum transport speed
40 km/h
Corn conditioner
John Deere Premium KPâ„¢; John Deere XStream KPâ„¢
Spout rotation, degrees
210 deg
Hydraulic height position
Standard: Hydraulic raise and lower; Optional: Automatic spout positioning
Working height
6,600 mm
Combine corn headers
Compatible with maize headers (8, 10 or 12 row configurations commonly offered)
Propelling drive range
mm
Feeding system/Feedrolls Number
4
Cutterhead type
Dura-Drumâ„¢ cutterhead
Cutterhead housing width
620 mm
Knife drum width
850 mm
Knife drum diameter
670 mm
Speed at rated engine speed
858 hp
Engine Model
D9,512 A7 04
Circle Diameter
560 mm
Drive sheaves
Heavy-duty gearbox (i=3.75) - optional extra heavy-duty gearbox (i=4.31)
John Deere 9800 Self-Propelled Forage Harvesters Listings
$375,000
D9512 A7 04
24 cu(m)
858 hp
1516 hours
Bad Axe, United States
$554,200
620 mm
0.56 m
670 mm
1386 hours
Alliance, United States
Compare John Deere 9800 Self-Propelled Forage Harvester to other self-propelled forage harvesters
Not sure which equipment to choose? Use our comparison tool to easily compare equipment side by side based on key features.

John Deere 9800 Self-Propelled Forage Harvester
0.56 m
6600 mm
Add model
Add model
No reviews yet
Be the first to review this model.
Leave a review. Get a promo code
Leave a review and receive a promo code for your next purchase.
No questions yet
Be the first to ask a question about this model and help other buyers learn more.
Heavy equipment insights from JumboBee
October 5, 2026
How to Choose the Right Excavator Bucket: Types, Sizes, and Contractor Buying Guide
This guide covers excavator bucket types, capacities, compatibility, and how to choose the right bucket for your jobsite.
September 28, 2026
Mini Excavator Buying Guide 2026: Best Models, Sizes and How to Choose
This guide breaks down everything you need to know about compact earthmoving equipment.
September 21, 2026
Types of Forklifts: Complete Guide to Classes, Uses, and Applications
This guide covers official forklift classes, physical machine variations, and load capacities.
August 25, 2026
Repair, Rebuild or Replace Heavy Equipment: 2026 Cost-Based Decision Guide
This guide provides a mathematical approach to help you decide what to do with your aging machinery in 2026.
July 31, 2026
How to Inspect Used Heavy Equipment Remotely: Practical Checklist for International Buyers
This article provides a practical, step-by-step guide for evaluating machinery without physical access.
July 10, 2026
New vs Used Heavy Equipment in 2026: Cost, Risk, ROI & When Each Option Wins
This guide explores new vs. used machinery investments, from costs and risks to financing and ROI.
Got Questions?
Our FAQ section covers everything from shipping and listing to buying with confidence.
Can't find what you're looking for?
Sign up and talk to an expert.
Most popular
What is the average price of a John Deere 9800?
No confirmed market price is supplied for the John Deere 9800. Check current listings and compare machine condition, location, and configuration.
What are the key advantages of the John Deere 9800?
Listed features include 639.8 kW (858 hp), ProDrive ground drive, manual and automatic differential lock, and a maximum transport speed of 40 km/h (24.9 mph). It also has a Dura-Drumâ„¢ cutterhead and compatibility with maize headers.
What type of engine does the 9800 use?
The 9800 uses a Liebherr D9512 A7 04 engine rated at Tier 4 Final.
How much horsepower does the 9800 have?
The 9800 is rated at 858 hp.
What fuel does the John Deere 9800 use?
The supplied specifications do not confirm the fuel type for the John Deere 9800. They list a fuel tank capacity of 1,500 L (396.3 US gal).
What jobs is this Self-Propelled Forage Harvesters (SPFH) best suited for?
The supplied data supports forage-harvesting work, including maize harvesting with compatible 8, 10 or 12 row header configurations. The available John Deere Premium KPâ„¢ and John Deere XStream KPâ„¢ corn conditioners also support corn-processing configurations.
What is the expected lifespan of the 9800?
The supplied data does not provide an expected lifespan for the 9800. Service life depends on operating conditions, maintenance history, component condition, and repair quality.
What should a buyer check when purchasing a used Self-Propelled Forage Harvesters (SPFH)?
Inspect the engine, ground drive, differential lock, cutterhead, knife drum, gearbox, spout operation, hydraulic functions, header compatibility, and corn conditioner. Review maintenance records and check for wear, leaks, damage, and abnormal operating behavior.






























