The John Deere 5100GN tractor tire size is front 11L-15 and the rear is 18.4R30.
Front tire11L-15
Rear tire18.4R30
Front/rear setupDifferent front and rear tire sizes
Tire pressure30 PSI, 36 PSI
Rim diameter15 in front, 30 in rear
John Deere 5100GN Tire Size Details
Front tire size
11L-15
Rear tire size
18.4R30
Front/rear setup
Different front and rear tire sizes
Original factory tire size
Front 12.4-24, Rear 16.9-30
Replacement tire size
Front 4.00-15, Rear 9.5-32
R1 ag tire size
12.4-24, 16.9-30
Front tire construction
Bias/imperial tire
Rear tire construction
Imperial radial
Front section width
11 in
Rear section width
18.4 in
Front rim diameter
15 in
Rear rim diameter
30 in
Tire pressure
30 PSI, 36 PSI
Tire Size Comparison Chart
Front rim diameter comparison
This model
15 in
Average
14.8 in
Low
6 in
High
28 in
Rear rim diameter comparison
This model
30 in
Average
22.2 in
Low
6 in
High
38 in
John Deere 5100GN Extra Tire Notes
Tire size note
The John Deere 5100GN uses different front and rear tire sizes in this data: front 11L-15 (15 in rim, 11 in width) and rear 18.4R30 (30 in rim, 18.4 in width)
Pressure note
For the John Deere 5100GN with front 11L-15 and rear 18.4R30 tires, the pressure values captured in the answer are 30 PSI, 36 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting
Front/rear matching note
The John Deere 5100GN data shows front 11L-15 and rear 18.4R30. 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.
