The John Deere 6420 tractor tire size is front 10.00-16 and the rear is 18.4-34.
Front tire10.00-16
Rear tire18.4-34
Front/rear setupDifferent front and rear tire sizes
Rim diameter16 in front, 34 in rear
John Deere 6420 Tire Size Details
Front tire size
10.00-16
Rear tire size
18.4-34
Front/rear setup
Different front and rear tire sizes
R1 ag tire size
10.00-16, 18.4-34, 13.6-24
Front tire construction
Bias/imperial tire
Rear tire construction
Bias/imperial tire
Front section width
10 in
Rear section width
18.4 in
Front rim diameter
16 in
Rear rim diameter
34 in
Tire Size Comparison Chart
Front rim diameter comparison
This model
16 in
Average
17.1 in
Low
4 in
High
50 in
Rear rim diameter comparison
This model
34 in
Average
25.5 in
Low
0 in
High
50 in
John Deere 6420 Extra Tire Notes
Tire size note
The John Deere 6420 uses different front and rear tire sizes in this data: front 10.00-16 (16 in rim, 10 in width) and rear 18.4-34 (34 in rim, 18.4 in width)
Official information note
Mistakes do happen. Tire sizes can change by year, axle, wheel/rim option, tyre brand, tread type and local market. Please check the tire sidewall, operator manual and official deere.com website for official information.
