The John Deere 7405 tractor tire size is front 10.00-16 and the rear is 18.4-38.
Front tire10.00-16
Rear tire18.4-38
Front/rear setupDifferent front and rear tire sizes
Tire pressure12 PSI, 14 PSI
Rim diameter16 in front, 38 in rear
Ballast120 gal
John Deere 7405 Tire Size Details
Front tire size
10.00-16
Rear tire size
18.4-38
Front/rear setup
Different front and rear tire sizes
R1 ag tire size
10.00-16, 18.4-38, 14.9-28
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
38 in
Tire pressure
12 PSI, 14 PSI
Loaded rear tire ballast / fluid capacity
120 gal
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
38 in
Average
25.5 in
Low
0 in
High
50 in
John Deere 7405 Extra Tire Notes
Tire size note
The John Deere 7405 uses different front and rear tire sizes in this data: front 10.00-16 (16 in rim, 10 in width) and rear 18.4-38 (38 in rim, 18.4 in width)
Pressure note
For the John Deere 7405 with front 10.00-16 and rear 18.4-38 tires, the pressure values captured in the answer are 12 PSI, 14 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting
Ballast note
For the John Deere 7405 rear 18.4-38 tires, the ballast figure captured in the answer is 120 gal. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type
Front/rear matching note
The John Deere 7405 data shows front 10.00-16 and rear 18.4-38. When changing either size, front/rear rolling circumference and lead/lag need to stay within the correct range
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.
