Quick answer:
The John Deere 420C transmission listing shows 4-speed and 5-speed. Top travel speed is 9.3 mph forward and 4.7 mph reverse. Transmission options include AutoPowr, IVT, CommandQuad, AutoQuad, PowrQuad, and PowerShift.
Gear count4-speed; 5-speed
Forward speed15 km/h
Reverse speed7.5 km/h
Transmission optionsAutoPowr, IVT, CommandQuad, AutoQuad + 2 more
John Deere 420C Transmission Specs
| Transmission gear count | 4-speed; 5-speed |
|---|---|
| Top forward speed | 9.3 mph |
| Top reverse speed | 4.7 mph |
| Transmission options | AutoPowr, IVT, CommandQuad, AutoQuad, PowrQuad, PowerShift |
Transmission Speed Comparison Chart
Top forward speed comparison
Top reverse speed comparison
John Deere 420C Extra Transmission Notes
| Gear note | For the John Deere 420C, the main transmission numbers captured here are 4-speed and 5-speed transmission figures. These are the specs buyers usually compare first because they show the usable gearing range |
|---|---|
| Speed note | The John Deere 420C speed data lists 9.3 mph forward and 4.7 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 420C 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.






