John Deere Launches F8 and F9 Series Forage Harvesters

John Deere introduced its new F8 and F9 Series self-propelled forage harvesters (SPFHs) on June 3, 2025, built with direct input from producers to increase power, boost forage quality and improve operational efficiency.

Designed for farmers and custom operators, the F8 and F9 Series machines integrate advanced automation, multiple engine configurations and upgraded operator comfort. According to Bergen Nelson, John Deere’s go-to-market manager for harvesting equipment, the goal was to combine high-powered hardware with precision agriculture tools. “A higher-quality forage output with more power, more precision and more uptime, that's the focus of the new forage harvesters for our customers,” Nelson said.

The F9 Series features two engine options — John Deere’s 18X and the Liebherr V12 24L — with five horsepower levels from 700PS to 1020PS. The F8 Series includes the JD14X engine, offering six power levels ranging from 425PS to 645PS. The JD18X engine requires no DEF and includes HarvestMotion Plus technology, which boosts torque at lower RPMs for up to 15% fuel savings and a 10% power increase.

Both series include new automation features. Ground speed automation adapts in real time to crop conditions, helping reduce operator fatigue. ProTouch Harvest enables one-button access to multiple preset functions, while Active Fill Control adjusts fills in real time to improve loading consistency.

In addition to performance enhancements, feed quality remains central to the new designs. The updated inoculant dosing system includes a larger, insulated tank and automated cleaning, which improves preservation and reduces end-of-day maintenance. The machines offer two kernel processor (KP) options: the John Deere Ultimate250 KP and the John Deere XStream305, the latter offering up to 56% more surface area for a more thorough kernel crush and longer wear life.

Cab design upgrades also aim to increase comfort and productivity. A swivel seat improves unloading visibility, and the G5 display system and hydro handle give operators more control with less effort. Optional lighting packages increase visibility by up to 68% for extended hours in the field.

John Deere says the machines are built to last, with Dura Line wear parts designed to extend lifespan and minimize downtime. Additional serviceability features include redesigned wiring harnesses, centralized control panels and updated embedded software for more efficient diagnostics.

“At the end of the day, this machine isn't just about horsepower — it's about forage quality that leads to better milk production, feed consistency, and operator productivity and confidence,” Nelson said.

The F8 and F9 Series SPFHs are available now. For more information, visit deere.com or contact your local John Deere dealer.