The John Deere 4420 transmission listing shows 8-speed. Top travel speed is 17.3 mph forward and 7.3 mph reverse. Transmission options include AutoPowr, IVT, CommandQuad, AutoQuad, PowrQuad, and PowerShift.
Gear count8-speed
Forward speed27.8 km/h
Reverse speed11.7 km/h
Transmission optionsAutoPowr, IVT, CommandQuad, AutoQuad + 2 more
For the John Deere 4420, the main transmission numbers captured here are a 8-speed transmission figure. These are the specs buyers usually compare first because they show the usable gearing range
Speed note
The John Deere 4420 speed data lists 17.3 mph forward and 7.3 mph reverse. Reverse speed is noticeably lower than forward speed, which is common on many tractor transmissions
Options note
Transmission options captured for the John Deere 4420 include AutoPowr, IVT, CommandQuad, AutoQuad, PowrQuad, PowerShift. The long option list usually means this model family had multiple transmission packages across trims, years or markets
Official information note
Mistakes do happen. Transmission specs can change by year, trim, region, tire size and option package. Please check the operator manual, build sheet and official deere.com website for official information.
