The John Deere 6800 tractor tire size is front 16.9R26 and the rear is 18.8R38.
Front tire16.9R26
Rear tire18.8R38
Front/rear setupDifferent front and rear tire sizes
Rim diameter26 in front, 38 in rear
John Deere 6800 Tire Size Details
Front tire size
16.9R26
Rear tire size
18.8R38
Front/rear setup
Different front and rear tire sizes
R1 ag tire size
420/85R28, 520/85R38
Front tire construction
Imperial radial
Rear tire construction
Imperial radial
Front section width
16.9 in
Rear section width
18.8 in
Front rim diameter
26 in
Rear rim diameter
38 in
Tire size alternatives / conversions
480/70R34, 380/85R34
Tire Size Comparison Chart
Front rim diameter comparison
This model
26 in
Average
17.1 in
Low
4 in
High
50 in
Rear rim diameter comparison
This model
38 in
Average
25.5 in
Low
0 in
High
50 in
John Deere 6800 Extra Tire Notes
Tire size note
The John Deere 6800 uses different front and rear tire sizes in this data: front 16.9R26 (26 in rim, 16.9 in width) and rear 18.8R38 (38 in rim, 18.8 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.
