John Deere F9 900
Source-backed specifications and current market configuration for this self-propelled forage harvester.
Specification set: United States · Current F8/F9 US specification Current John Deere F8/F9 data captured 2026-08-31. Individual-page rated/max power and family-table HarvestMotion metrics are deliberately stored under different spec keys when the published values differ.
Machine Configuration
Machine configurationSelf-propelled forage harvester
Official market scopeUnited States current F8/F9 catalog
Engine
Engine modelLiebherr V12
Engine displacement24.2 L
Cylinders12
Engine / turbo configurationLiebherr V12 HarvestMotion powertrain
F8/F9 family table rated power879 hp
ECO mode power810 hp
Harvesting System
Harvest automationProTouch Harvest and Ground Speed Automation available in the current F8/F9 platform
Header Connection
Maize header options14.8, 19.7, 24.6, or 29.5 ft maize header working widths; 6, 8, 10, or 12 rows
Grass pickup options9.84, 11.45, 13.12, 14.76, or 15.09 ft grass pickup transport widths
Kernel Processing
Kernel processor optionsJohn Deere Ultimate250 KP or XStream305 KP
Capacities
Fuel tank capacity396 gal
DEF tank capacity39.9 gal
Sources
Specifications on this page are tied to the cited source records and the selected market/configuration version.